diff --git a/src/ast-node-types.ts b/src/ast-node-types.ts
index d35277f..58dc30f 100644
--- a/src/ast-node-types.ts
+++ b/src/ast-node-types.ts
@@ -21,7 +21,6 @@ export enum AST_NODE_TYPES {
   ClassBody = 'ClassBody',
   ClassDeclaration = 'ClassDeclaration',
   ClassExpression = 'ClassExpression',
-  ClassImplements = 'ClassImplements',
   ClassProperty = 'ClassProperty',
   ConditionalExpression = 'ConditionalExpression',
   ContinueStatement = 'ContinueStatement',
@@ -108,6 +107,7 @@ export enum AST_NODE_TYPES {
   TSConditionalType = 'TSConditionalType',
   TSConstructorType = 'TSConstructorType',
   TSCallSignatureDeclaration = 'TSCallSignatureDeclaration',
+  TSClassImplements = 'TSClassImplements',
   TSConstructSignatureDeclaration = 'TSConstructSignatureDeclaration',
   TSDeclareKeyword = 'TSDeclareKeyword',
   TSDeclareFunction = 'TSDeclareFunction',
diff --git a/src/convert.ts b/src/convert.ts
index 1e420b9..bfd00b3 100644
--- a/src/convert.ts
+++ b/src/convert.ts
@@ -274,12 +274,12 @@ export default function convert(config: ConvertConfig): ESTreeNode | null {
     nodeType: AST_NODE_TYPES,
     child: ts.ExpressionWithTypeArguments
   ): ESTreeNode {
-    const id = convertChild(child.expression)!;
+    const expression = convertChild(child.expression)!;
     const classImplementsNode: ESTreeNode = {
       type: nodeType,
-      loc: id.loc,
-      range: id.range,
-      id
+      loc: expression.loc,
+      range: expression.range,
+      expression
     };
     if (child.typeArguments && child.typeArguments.length) {
       classImplementsNode.typeParameters = convertTypeArgumentsToTypeParameters(
@@ -1500,9 +1500,8 @@ export default function convert(config: ConvertConfig): ESTreeNode | null {
       });
 
       if (implementsClause) {
-        (result as any).implements = implementsClause.types.map(el =>
-          // ClassImplements node to match what Flow does.
-          convertHeritageClause(AST_NODE_TYPES.ClassImplements, el)
+        result.implements = implementsClause.types.map(el =>
+          convertHeritageClause(AST_NODE_TYPES.TSClassImplements, el)
         );
       }
 
@@ -2405,7 +2404,6 @@ export default function convert(config: ConvertConfig): ESTreeNode | null {
         );
       }
 
-      const hasImplementsClause = interfaceHeritageClauses.length > 0;
       const interfaceOpenBrace = nodeUtils.findNextToken(
         interfaceLastClassToken,
         ast,
@@ -2426,13 +2424,38 @@ export default function convert(config: ConvertConfig): ESTreeNode | null {
       Object.assign(result, {
         type: AST_NODE_TYPES.TSInterfaceDeclaration,
         body: interfaceBody,
-        id: convertChild(node.name),
-        heritage: hasImplementsClause
-          ? interfaceHeritageClauses[0].types.map(el =>
-              convertHeritageClause(AST_NODE_TYPES.TSInterfaceHeritage, el)
-            )
-          : []
+        id: convertChild(node.name)
       });
+
+      if (interfaceHeritageClauses.length > 0) {
+        const interfaceExtends = [];
+        const interfaceImplements = [];
+
+        for (const heritageClause of interfaceHeritageClauses) {
+          if (heritageClause.token === SyntaxKind.ExtendsKeyword) {
+            for (const n of heritageClause.types) {
+              interfaceExtends.push(
+                convertHeritageClause(AST_NODE_TYPES.TSInterfaceHeritage, n)
+              );
+            }
+          } else if (heritageClause.token === SyntaxKind.ImplementsKeyword) {
+            for (const n of heritageClause.types) {
+              interfaceImplements.push(
+                convertHeritageClause(AST_NODE_TYPES.TSInterfaceHeritage, n)
+              );
+            }
+          }
+        }
+
+        if (interfaceExtends.length) {
+          result.extends = interfaceExtends;
+        }
+
+        if (interfaceImplements.length) {
+          result.implements = interfaceImplements;
+        }
+      }
+
       /**
        * Semantically, decorators are not allowed on interface declarations,
        * but the TypeScript compiler will parse them and produce a valid AST,
diff --git a/src/semantic-errors.ts b/src/semantic-errors.ts
index 067a702..3513c4d 100644
--- a/src/semantic-errors.ts
+++ b/src/semantic-errors.ts
@@ -68,7 +68,10 @@ function whitelistSupportedDiagnostics(
       case 1121: // ts 3.2 "Octal literals are not allowed in strict mode."
       case 1123: // ts 3.2: "Variable declaration list cannot be empty."
       case 1141: // ts 3.2 "String literal expected."
+      case 1172: // ts 3.2 "'extends' clause already seen."
       case 1173: // ts 3.2 "'extends' clause must precede 'implements' clause."
+      case 1175: // ts 3.2 "'implements' clause already seen."
+      case 1176: // ts 3.2 "Interface declaration cannot have 'implements' clause."
       case 1190: // ts 3.2 "The variable declaration of a 'for...of' statement cannot have an initializer."
       case 1200: // ts 3.2 "Line terminator not permitted before arrow."
       case 1206: // ts 3.2 "Decorators are not valid here."
diff --git a/src/temp-types-based-on-js-source.ts b/src/temp-types-based-on-js-source.ts
index cf7124a..a002b74 100644
--- a/src/temp-types-based-on-js-source.ts
+++ b/src/temp-types-based-on-js-source.ts
@@ -34,6 +34,8 @@ export interface ESTreeNode {
   value?: string;
   expression?: ESTreeNode | null;
   decorators?: (ESTreeNode | null)[];
+  implements?: ESTreeNode[];
+  extends?: ESTreeNode[];
   const?: boolean;
   declare?: boolean;
   global?: boolean;
diff --git a/tests/ast-alignment/fixtures-to-test.ts b/tests/ast-alignment/fixtures-to-test.ts
index d6182fb..30d8bbd 100644
--- a/tests/ast-alignment/fixtures-to-test.ts
+++ b/tests/ast-alignment/fixtures-to-test.ts
@@ -314,25 +314,6 @@ tester.addFixturePatternConfig('typescript/basics', {
      * TODO: remove me in next babel > 7.2.3
      */
     'arrow-function-with-type-parameters',
-    /**
-     * Babel: ClassDeclaration + abstract: true
-     * ts-estree: TSAbstractClassDeclaration
-     */
-    'abstract-class-with-abstract-properties',
-    /**
-     * Babel: ClassProperty + abstract: true
-     * ts-estree: TSAbstractClassProperty
-     */
-    'abstract-class-with-abstract-readonly-property',
-    /**
-     * Babel: TSExpressionWithTypeArguments
-     * ts-estree: ClassImplements
-     */
-    'class-with-implements-generic-multiple',
-    'class-with-implements-generic',
-    'class-with-implements',
-    'class-with-extends-and-implements',
-    'class-with-mixin',
     /**
      * Babel error: parameterName is not included into range of TSTypeAnnotation
      * TODO: report it to babel
@@ -341,26 +322,11 @@ tester.addFixturePatternConfig('typescript/basics', {
     /**
      * there is difference in range between babel and ts-estree
      */
+    'class-with-implements-generic-multiple',
+    'class-with-implements-generic',
     'export-declare-const-named-enum',
-    /**
-     * Other major AST differences (e.g. fundamentally different node types)
-     */
-    'interface-extends-multiple',
-    'interface-extends',
-    'interface-type-parameters',
     'interface-with-extends-type-parameters',
-    'interface-with-generic',
-    'interface-with-jsdoc',
     'interface-with-optional-properties',
-    'interface-without-type-annotation',
-    'type-guard-in-interface',
-    'typed-this',
-    /**
-     * AST difference
-     * ts-estree: heritage = []
-     * babel: heritage = undefined
-     */
-    'interface-with-method',
     /**
      * Babel bug for parsing exported abstract interface
      * https://github.com/babel/babel/issues/9304
@@ -471,21 +437,7 @@ tester.addFixturePatternConfig('typescript/types', {
 });
 
 tester.addFixturePatternConfig('typescript/declare', {
-  fileType: 'ts',
-  ignore: [
-    /**
-     * AST difference
-     * ts-estree: heritage = []
-     * babel: heritage = undefined
-     */
-    'interface',
-    /**
-     * AST difference
-     * ts-estree: TSAbstractClassDeclaration
-     * babel: ClassDeclaration[abstract=true]
-     */
-    'abstract-class'
-  ]
+  fileType: 'ts'
 });
 
 tester.addFixturePatternConfig('typescript/namespaces-and-modules', {
diff --git a/tests/ast-alignment/utils.ts b/tests/ast-alignment/utils.ts
index 1857972..34c3dab 100644
--- a/tests/ast-alignment/utils.ts
+++ b/tests/ast-alignment/utils.ts
@@ -231,6 +231,36 @@ export function preprocessBabylonAST(ast: any): any {
             type: AST_NODE_TYPES.Identifier
           };
         }
+      },
+      /**
+       * Babel: ClassDeclaration + abstract: true
+       * ts-estree: TSAbstractClassDeclaration
+       */
+      ClassDeclaration(node: any) {
+        if (node.abstract) {
+          node.type = 'TSAbstractClassDeclaration';
+          delete node.abstract;
+        }
+      },
+      /**
+       * Babel: ClassProperty + abstract: true
+       * ts-estree: TSAbstractClassProperty
+       */
+      ClassProperty(node: any, parent: any) {
+        if (node.abstract) {
+          node.type = 'TSAbstractClassProperty';
+          delete node.abstract;
+        }
+      },
+      TSExpressionWithTypeArguments(node: any, parent: any) {
+        if (parent.type === 'TSInterfaceDeclaration') {
+          node.type = 'TSInterfaceHeritage';
+        } else if (
+          parent.type === 'ClassExpression' ||
+          parent.type === 'ClassDeclaration'
+        ) {
+          node.type = 'TSClassImplements';
+        }
       }
     }
   );
diff --git a/tests/fixtures/typescript/errorRecovery/class-multiple-implements.src.ts b/tests/fixtures/typescript/errorRecovery/class-multiple-implements.src.ts
new file mode 100644
index 0000000..4ecd2ee
--- /dev/null
+++ b/tests/fixtures/typescript/errorRecovery/class-multiple-implements.src.ts
@@ -0,0 +1 @@
+class a implements b implements c {}
diff --git a/tests/fixtures/typescript/errorRecovery/interface-implements.src.ts b/tests/fixtures/typescript/errorRecovery/interface-implements.src.ts
new file mode 100644
index 0000000..d3b8c72
--- /dev/null
+++ b/tests/fixtures/typescript/errorRecovery/interface-implements.src.ts
@@ -0,0 +1 @@
+interface d implements e {}
diff --git a/tests/fixtures/typescript/errorRecovery/interface-multiple-extends.src.ts b/tests/fixtures/typescript/errorRecovery/interface-multiple-extends.src.ts
new file mode 100644
index 0000000..343867f
--- /dev/null
+++ b/tests/fixtures/typescript/errorRecovery/interface-multiple-extends.src.ts
@@ -0,0 +1 @@
+interface foo extends bar extends baz {}
diff --git a/tests/lib/__snapshots__/semantic-diagnostics-enabled.ts.snap b/tests/lib/__snapshots__/semantic-diagnostics-enabled.ts.snap
index b55b744..312d444 100644
--- a/tests/lib/__snapshots__/semantic-diagnostics-enabled.ts.snap
+++ b/tests/lib/__snapshots__/semantic-diagnostics-enabled.ts.snap
@@ -2191,6 +2191,15 @@ Object {
 }
 `;
 
+exports[`Parse all fixtures with "errorOnTypeScriptSyntacticAndSemanticIssues" enabled fixtures/typescript/errorRecovery/class-multiple-implements.src.ts.src 1`] = `
+Object {
+  "column": 21,
+  "index": 21,
+  "lineNumber": 1,
+  "message": "'implements' clause already seen.",
+}
+`;
+
 exports[`Parse all fixtures with "errorOnTypeScriptSyntacticAndSemanticIssues" enabled fixtures/typescript/errorRecovery/decorator-on-enum-declaration.src.ts.src 1`] = `
 Object {
   "column": 0,
@@ -2238,6 +2247,15 @@ Object {
 }
 `;
 
+exports[`Parse all fixtures with "errorOnTypeScriptSyntacticAndSemanticIssues" enabled fixtures/typescript/errorRecovery/interface-implements.src.ts.src 1`] = `
+Object {
+  "column": 12,
+  "index": 12,
+  "lineNumber": 1,
+  "message": "Interface declaration cannot have 'implements' clause.",
+}
+`;
+
 exports[`Parse all fixtures with "errorOnTypeScriptSyntacticAndSemanticIssues" enabled fixtures/typescript/errorRecovery/interface-index-signature-export.src.ts.src 1`] = `
 Object {
   "column": 2,
@@ -2328,6 +2346,15 @@ Object {
 }
 `;
 
+exports[`Parse all fixtures with "errorOnTypeScriptSyntacticAndSemanticIssues" enabled fixtures/typescript/errorRecovery/interface-multiple-extends.src.ts.src 1`] = `
+Object {
+  "column": 26,
+  "index": 26,
+  "lineNumber": 1,
+  "message": "'extends' clause already seen.",
+}
+`;
+
 exports[`Parse all fixtures with "errorOnTypeScriptSyntacticAndSemanticIssues" enabled fixtures/typescript/errorRecovery/interface-property-export.src.ts.src 1`] = `
 Object {
   "column": 2,
diff --git a/tests/lib/__snapshots__/typescript.ts.snap b/tests/lib/__snapshots__/typescript.ts.snap
index c3aff24..183fd7e 100644
--- a/tests/lib/__snapshots__/typescript.ts.snap
+++ b/tests/lib/__snapshots__/typescript.ts.snap
@@ -2919,7 +2919,6 @@ Object {
           ],
           "type": "TSInterfaceBody",
         },
-        "heritage": Array [],
         "id": Object {
           "loc": Object {
             "end": Object {
@@ -9740,7 +9739,7 @@ Object {
       },
       "implements": Array [
         Object {
-          "id": Object {
+          "expression": Object {
             "loc": Object {
               "end": Object {
                 "column": 77,
@@ -9772,7 +9771,7 @@ Object {
             66,
             77,
           ],
-          "type": "ClassImplements",
+          "type": "TSClassImplements",
         },
       ],
       "loc": Object {
@@ -11926,7 +11925,7 @@ Object {
       },
       "implements": Array [
         Object {
-          "id": Object {
+          "expression": Object {
             "loc": Object {
               "end": Object {
                 "column": 24,
@@ -11958,7 +11957,7 @@ Object {
             21,
             24,
           ],
-          "type": "ClassImplements",
+          "type": "TSClassImplements",
         },
       ],
       "loc": Object {
@@ -12150,7 +12149,7 @@ Object {
       },
       "implements": Array [
         Object {
-          "id": Object {
+          "expression": Object {
             "loc": Object {
               "end": Object {
                 "column": 56,
@@ -12182,7 +12181,7 @@ Object {
             45,
             56,
           ],
-          "type": "ClassImplements",
+          "type": "TSClassImplements",
         },
       ],
       "loc": Object {
@@ -12427,7 +12426,7 @@ Object {
       },
       "implements": Array [
         Object {
-          "id": Object {
+          "expression": Object {
             "loc": Object {
               "end": Object {
                 "column": 24,
@@ -12459,7 +12458,7 @@ Object {
             21,
             24,
           ],
-          "type": "ClassImplements",
+          "type": "TSClassImplements",
           "typeParameters": Object {
             "loc": Object {
               "end": Object {
@@ -12759,7 +12758,7 @@ Object {
       },
       "implements": Array [
         Object {
-          "id": Object {
+          "expression": Object {
             "loc": Object {
               "end": Object {
                 "column": 24,
@@ -12791,7 +12790,7 @@ Object {
             21,
             24,
           ],
-          "type": "ClassImplements",
+          "type": "TSClassImplements",
           "typeParameters": Object {
             "loc": Object {
               "end": Object {
@@ -13488,7 +13487,7 @@ Object {
       },
       "implements": Array [
         Object {
-          "id": Object {
+          "expression": Object {
             "loc": Object {
               "end": Object {
                 "column": 38,
@@ -13520,7 +13519,7 @@ Object {
             123,
             124,
           ],
-          "type": "ClassImplements",
+          "type": "TSClassImplements",
         },
       ],
       "loc": Object {
@@ -13703,7 +13702,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -41565,9 +41563,9 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [
+      "extends": Array [
         Object {
-          "id": Object {
+          "expression": Object {
             "loc": Object {
               "end": Object {
                 "column": 25,
@@ -41788,9 +41786,9 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [
+      "extends": Array [
         Object {
-          "id": Object {
+          "expression": Object {
             "loc": Object {
               "end": Object {
                 "column": 25,
@@ -41825,7 +41823,7 @@ Object {
           "type": "TSInterfaceHeritage",
         },
         Object {
-          "id": Object {
+          "expression": Object {
             "loc": Object {
               "end": Object {
                 "column": 29,
@@ -42082,7 +42080,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -43574,7 +43571,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -45761,7 +45757,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -46074,9 +46069,9 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [
+      "extends": Array [
         Object {
-          "id": Object {
+          "expression": Object {
             "loc": Object {
               "end": Object {
                 "column": 28,
@@ -46513,7 +46508,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -46829,7 +46823,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -47409,7 +47402,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -48176,7 +48168,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -48760,7 +48751,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -56298,7 +56288,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -62299,7 +62288,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -65746,7 +65734,6 @@ Object {
         "type": "TSInterfaceBody",
       },
       "declare": true,
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -77904,7 +77891,7 @@ Object {
       },
       "implements": Array [
         Object {
-          "id": Object {
+          "expression": Object {
             "loc": Object {
               "end": Object {
                 "column": 32,
@@ -77936,7 +77923,7 @@ Object {
             29,
             32,
           ],
-          "type": "ClassImplements",
+          "type": "TSClassImplements",
         },
       ],
       "loc": Object {
@@ -78327,68 +78314,86 @@ Object {
 }
 `;
 
-exports[`typescript fixtures/errorRecovery/decorator-on-enum-declaration.src 1`] = `
+exports[`typescript fixtures/errorRecovery/class-multiple-implements.src 1`] = `
 Object {
   "body": Array [
     Object {
-      "decorators": Array [
+      "body": Object {
+        "body": Array [],
+        "loc": Object {
+          "end": Object {
+            "column": 36,
+            "line": 1,
+          },
+          "start": Object {
+            "column": 34,
+            "line": 1,
+          },
+        },
+        "range": Array [
+          34,
+          36,
+        ],
+        "type": "ClassBody",
+      },
+      "id": Object {
+        "loc": Object {
+          "end": Object {
+            "column": 7,
+            "line": 1,
+          },
+          "start": Object {
+            "column": 6,
+            "line": 1,
+          },
+        },
+        "name": "a",
+        "range": Array [
+          6,
+          7,
+        ],
+        "type": "Identifier",
+      },
+      "implements": Array [
         Object {
           "expression": Object {
             "loc": Object {
               "end": Object {
-                "column": 4,
+                "column": 20,
                 "line": 1,
               },
               "start": Object {
-                "column": 1,
+                "column": 19,
                 "line": 1,
               },
             },
-            "name": "dec",
+            "name": "b",
             "range": Array [
-              1,
-              4,
+              19,
+              20,
             ],
             "type": "Identifier",
           },
           "loc": Object {
             "end": Object {
-              "column": 4,
+              "column": 20,
               "line": 1,
             },
             "start": Object {
-              "column": 0,
+              "column": 19,
               "line": 1,
             },
           },
           "range": Array [
-            0,
-            4,
+            19,
+            20,
           ],
-          "type": "Decorator",
+          "type": "TSClassImplements",
         },
       ],
-      "id": Object {
-        "loc": Object {
-          "end": Object {
-            "column": 11,
-            "line": 1,
-          },
-          "start": Object {
-            "column": 10,
-            "line": 1,
-          },
-        },
-        "name": "E",
-        "range": Array [
-          10,
-          11,
-        ],
-        "type": "Identifier",
-      },
       "loc": Object {
         "end": Object {
-          "column": 14,
+          "column": 36,
           "line": 1,
         },
         "start": Object {
@@ -78396,18 +78401,18 @@ Object {
           "line": 1,
         },
       },
-      "members": Array [],
       "range": Array [
         0,
-        14,
+        36,
       ],
-      "type": "TSEnumDeclaration",
+      "superClass": null,
+      "type": "ClassDeclaration",
     },
   ],
   "loc": Object {
     "end": Object {
-      "column": 14,
-      "line": 1,
+      "column": 0,
+      "line": 2,
     },
     "start": Object {
       "column": 0,
@@ -78416,14 +78421,14 @@ Object {
   },
   "range": Array [
     0,
-    14,
+    37,
   ],
   "sourceType": "script",
   "tokens": Array [
     Object {
       "loc": Object {
         "end": Object {
-          "column": 1,
+          "column": 5,
           "line": 1,
         },
         "start": Object {
@@ -78433,79 +78438,115 @@ Object {
       },
       "range": Array [
         0,
-        1,
+        5,
       ],
-      "type": "Punctuator",
-      "value": "@",
+      "type": "Keyword",
+      "value": "class",
     },
     Object {
       "loc": Object {
         "end": Object {
-          "column": 4,
+          "column": 7,
           "line": 1,
         },
         "start": Object {
-          "column": 1,
+          "column": 6,
           "line": 1,
         },
       },
       "range": Array [
-        1,
-        4,
+        6,
+        7,
       ],
       "type": "Identifier",
-      "value": "dec",
+      "value": "a",
     },
     Object {
       "loc": Object {
         "end": Object {
-          "column": 9,
+          "column": 18,
           "line": 1,
         },
         "start": Object {
-          "column": 5,
+          "column": 8,
           "line": 1,
         },
       },
       "range": Array [
-        5,
-        9,
+        8,
+        18,
       ],
       "type": "Keyword",
-      "value": "enum",
+      "value": "implements",
     },
     Object {
       "loc": Object {
         "end": Object {
-          "column": 11,
+          "column": 20,
           "line": 1,
         },
         "start": Object {
-          "column": 10,
+          "column": 19,
           "line": 1,
         },
       },
       "range": Array [
-        10,
-        11,
+        19,
+        20,
       ],
       "type": "Identifier",
-      "value": "E",
+      "value": "b",
     },
     Object {
       "loc": Object {
         "end": Object {
-          "column": 13,
+          "column": 31,
           "line": 1,
         },
         "start": Object {
-          "column": 12,
+          "column": 21,
           "line": 1,
         },
       },
       "range": Array [
-        12,
-        13,
+        21,
+        31,
+      ],
+      "type": "Keyword",
+      "value": "implements",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 33,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 32,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        32,
+        33,
+      ],
+      "type": "Identifier",
+      "value": "c",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 35,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 34,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        34,
+        35,
       ],
       "type": "Punctuator",
       "value": "{",
@@ -78513,17 +78554,17 @@ Object {
     Object {
       "loc": Object {
         "end": Object {
-          "column": 14,
+          "column": 36,
           "line": 1,
         },
         "start": Object {
-          "column": 13,
+          "column": 35,
           "line": 1,
         },
       },
       "range": Array [
-        13,
-        14,
+        35,
+        36,
       ],
       "type": "Punctuator",
       "value": "}",
@@ -78533,53 +78574,16 @@ Object {
 }
 `;
 
-exports[`typescript fixtures/errorRecovery/decorator-on-interface-declaration.src 1`] = `
+exports[`typescript fixtures/errorRecovery/decorator-on-enum-declaration.src 1`] = `
 Object {
   "body": Array [
     Object {
-      "body": Object {
-        "body": Array [],
-        "loc": Object {
-          "end": Object {
-            "column": 14,
-            "line": 2,
-          },
-          "start": Object {
-            "column": 12,
-            "line": 2,
-          },
-        },
-        "range": Array [
-          20,
-          22,
-        ],
-        "type": "TSInterfaceBody",
-      },
       "decorators": Array [
         Object {
           "expression": Object {
-            "arguments": Array [],
-            "callee": Object {
-              "loc": Object {
-                "end": Object {
-                  "column": 5,
-                  "line": 1,
-                },
-                "start": Object {
-                  "column": 1,
-                  "line": 1,
-                },
-              },
-              "name": "deco",
-              "range": Array [
-                1,
-                5,
-              ],
-              "type": "Identifier",
-            },
             "loc": Object {
               "end": Object {
-                "column": 7,
+                "column": 4,
                 "line": 1,
               },
               "start": Object {
@@ -78587,15 +78591,16 @@ Object {
                 "line": 1,
               },
             },
+            "name": "dec",
             "range": Array [
               1,
-              7,
+              4,
             ],
-            "type": "CallExpression",
+            "type": "Identifier",
           },
           "loc": Object {
             "end": Object {
-              "column": 7,
+              "column": 4,
               "line": 1,
             },
             "start": Object {
@@ -78605,51 +78610,51 @@ Object {
           },
           "range": Array [
             0,
-            7,
+            4,
           ],
           "type": "Decorator",
         },
       ],
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
             "column": 11,
-            "line": 2,
+            "line": 1,
           },
           "start": Object {
             "column": 10,
-            "line": 2,
+            "line": 1,
           },
         },
-        "name": "M",
+        "name": "E",
         "range": Array [
-          18,
-          19,
+          10,
+          11,
         ],
         "type": "Identifier",
       },
       "loc": Object {
         "end": Object {
           "column": 14,
-          "line": 2,
+          "line": 1,
         },
         "start": Object {
           "column": 0,
           "line": 1,
         },
       },
+      "members": Array [],
       "range": Array [
         0,
-        22,
+        14,
       ],
-      "type": "TSInterfaceDeclaration",
+      "type": "TSEnumDeclaration",
     },
   ],
   "loc": Object {
     "end": Object {
       "column": 14,
-      "line": 2,
+      "line": 1,
     },
     "start": Object {
       "column": 0,
@@ -78658,7 +78663,248 @@ Object {
   },
   "range": Array [
     0,
-    22,
+    14,
+  ],
+  "sourceType": "script",
+  "tokens": Array [
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 1,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 0,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        0,
+        1,
+      ],
+      "type": "Punctuator",
+      "value": "@",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 4,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 1,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        1,
+        4,
+      ],
+      "type": "Identifier",
+      "value": "dec",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 9,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 5,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        5,
+        9,
+      ],
+      "type": "Keyword",
+      "value": "enum",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 11,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 10,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        10,
+        11,
+      ],
+      "type": "Identifier",
+      "value": "E",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 13,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 12,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        12,
+        13,
+      ],
+      "type": "Punctuator",
+      "value": "{",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 14,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 13,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        13,
+        14,
+      ],
+      "type": "Punctuator",
+      "value": "}",
+    },
+  ],
+  "type": "Program",
+}
+`;
+
+exports[`typescript fixtures/errorRecovery/decorator-on-interface-declaration.src 1`] = `
+Object {
+  "body": Array [
+    Object {
+      "body": Object {
+        "body": Array [],
+        "loc": Object {
+          "end": Object {
+            "column": 14,
+            "line": 2,
+          },
+          "start": Object {
+            "column": 12,
+            "line": 2,
+          },
+        },
+        "range": Array [
+          20,
+          22,
+        ],
+        "type": "TSInterfaceBody",
+      },
+      "decorators": Array [
+        Object {
+          "expression": Object {
+            "arguments": Array [],
+            "callee": Object {
+              "loc": Object {
+                "end": Object {
+                  "column": 5,
+                  "line": 1,
+                },
+                "start": Object {
+                  "column": 1,
+                  "line": 1,
+                },
+              },
+              "name": "deco",
+              "range": Array [
+                1,
+                5,
+              ],
+              "type": "Identifier",
+            },
+            "loc": Object {
+              "end": Object {
+                "column": 7,
+                "line": 1,
+              },
+              "start": Object {
+                "column": 1,
+                "line": 1,
+              },
+            },
+            "range": Array [
+              1,
+              7,
+            ],
+            "type": "CallExpression",
+          },
+          "loc": Object {
+            "end": Object {
+              "column": 7,
+              "line": 1,
+            },
+            "start": Object {
+              "column": 0,
+              "line": 1,
+            },
+          },
+          "range": Array [
+            0,
+            7,
+          ],
+          "type": "Decorator",
+        },
+      ],
+      "id": Object {
+        "loc": Object {
+          "end": Object {
+            "column": 11,
+            "line": 2,
+          },
+          "start": Object {
+            "column": 10,
+            "line": 2,
+          },
+        },
+        "name": "M",
+        "range": Array [
+          18,
+          19,
+        ],
+        "type": "Identifier",
+      },
+      "loc": Object {
+        "end": Object {
+          "column": 14,
+          "line": 2,
+        },
+        "start": Object {
+          "column": 0,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        0,
+        22,
+      ],
+      "type": "TSInterfaceDeclaration",
+    },
+  ],
+  "loc": Object {
+    "end": Object {
+      "column": 14,
+      "line": 2,
+    },
+    "start": Object {
+      "column": 0,
+      "line": 1,
+    },
+  },
+  "range": Array [
+    0,
+    22,
   ],
   "sourceType": "script",
   "tokens": Array [
@@ -80051,7 +80297,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -80198,6 +80443,229 @@ Object {
 }
 `;
 
+exports[`typescript fixtures/errorRecovery/interface-implements.src 1`] = `
+Object {
+  "body": Array [
+    Object {
+      "body": Object {
+        "body": Array [],
+        "loc": Object {
+          "end": Object {
+            "column": 27,
+            "line": 1,
+          },
+          "start": Object {
+            "column": 25,
+            "line": 1,
+          },
+        },
+        "range": Array [
+          25,
+          27,
+        ],
+        "type": "TSInterfaceBody",
+      },
+      "id": Object {
+        "loc": Object {
+          "end": Object {
+            "column": 11,
+            "line": 1,
+          },
+          "start": Object {
+            "column": 10,
+            "line": 1,
+          },
+        },
+        "name": "d",
+        "range": Array [
+          10,
+          11,
+        ],
+        "type": "Identifier",
+      },
+      "implements": Array [
+        Object {
+          "expression": Object {
+            "loc": Object {
+              "end": Object {
+                "column": 24,
+                "line": 1,
+              },
+              "start": Object {
+                "column": 23,
+                "line": 1,
+              },
+            },
+            "name": "e",
+            "range": Array [
+              23,
+              24,
+            ],
+            "type": "Identifier",
+          },
+          "loc": Object {
+            "end": Object {
+              "column": 24,
+              "line": 1,
+            },
+            "start": Object {
+              "column": 23,
+              "line": 1,
+            },
+          },
+          "range": Array [
+            23,
+            24,
+          ],
+          "type": "TSInterfaceHeritage",
+        },
+      ],
+      "loc": Object {
+        "end": Object {
+          "column": 27,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 0,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        0,
+        27,
+      ],
+      "type": "TSInterfaceDeclaration",
+    },
+  ],
+  "loc": Object {
+    "end": Object {
+      "column": 0,
+      "line": 2,
+    },
+    "start": Object {
+      "column": 0,
+      "line": 1,
+    },
+  },
+  "range": Array [
+    0,
+    28,
+  ],
+  "sourceType": "script",
+  "tokens": Array [
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 9,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 0,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        0,
+        9,
+      ],
+      "type": "Keyword",
+      "value": "interface",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 11,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 10,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        10,
+        11,
+      ],
+      "type": "Identifier",
+      "value": "d",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 22,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 12,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        12,
+        22,
+      ],
+      "type": "Keyword",
+      "value": "implements",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 24,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 23,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        23,
+        24,
+      ],
+      "type": "Identifier",
+      "value": "e",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 26,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 25,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        25,
+        26,
+      ],
+      "type": "Punctuator",
+      "value": "{",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 27,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 26,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        26,
+        27,
+      ],
+      "type": "Punctuator",
+      "value": "}",
+    },
+  ],
+  "type": "Program",
+}
+`;
+
 exports[`typescript fixtures/errorRecovery/interface-index-signature-export.src 1`] = `
 Object {
   "body": Array [
@@ -80327,7 +80795,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -80747,7 +81214,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -81167,7 +81633,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -81587,7 +82052,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -82007,7 +82471,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -82446,7 +82909,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -82903,7 +83365,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -83360,7 +83821,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -83817,7 +84277,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -84274,7 +84733,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -84583,6 +85041,300 @@ Object {
 }
 `;
 
+exports[`typescript fixtures/errorRecovery/interface-multiple-extends.src 1`] = `
+Object {
+  "body": Array [
+    Object {
+      "body": Object {
+        "body": Array [],
+        "loc": Object {
+          "end": Object {
+            "column": 40,
+            "line": 1,
+          },
+          "start": Object {
+            "column": 38,
+            "line": 1,
+          },
+        },
+        "range": Array [
+          38,
+          40,
+        ],
+        "type": "TSInterfaceBody",
+      },
+      "extends": Array [
+        Object {
+          "expression": Object {
+            "loc": Object {
+              "end": Object {
+                "column": 25,
+                "line": 1,
+              },
+              "start": Object {
+                "column": 22,
+                "line": 1,
+              },
+            },
+            "name": "bar",
+            "range": Array [
+              22,
+              25,
+            ],
+            "type": "Identifier",
+          },
+          "loc": Object {
+            "end": Object {
+              "column": 25,
+              "line": 1,
+            },
+            "start": Object {
+              "column": 22,
+              "line": 1,
+            },
+          },
+          "range": Array [
+            22,
+            25,
+          ],
+          "type": "TSInterfaceHeritage",
+        },
+        Object {
+          "expression": Object {
+            "loc": Object {
+              "end": Object {
+                "column": 37,
+                "line": 1,
+              },
+              "start": Object {
+                "column": 34,
+                "line": 1,
+              },
+            },
+            "name": "baz",
+            "range": Array [
+              34,
+              37,
+            ],
+            "type": "Identifier",
+          },
+          "loc": Object {
+            "end": Object {
+              "column": 37,
+              "line": 1,
+            },
+            "start": Object {
+              "column": 34,
+              "line": 1,
+            },
+          },
+          "range": Array [
+            34,
+            37,
+          ],
+          "type": "TSInterfaceHeritage",
+        },
+      ],
+      "id": Object {
+        "loc": Object {
+          "end": Object {
+            "column": 13,
+            "line": 1,
+          },
+          "start": Object {
+            "column": 10,
+            "line": 1,
+          },
+        },
+        "name": "foo",
+        "range": Array [
+          10,
+          13,
+        ],
+        "type": "Identifier",
+      },
+      "loc": Object {
+        "end": Object {
+          "column": 40,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 0,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        0,
+        40,
+      ],
+      "type": "TSInterfaceDeclaration",
+    },
+  ],
+  "loc": Object {
+    "end": Object {
+      "column": 0,
+      "line": 2,
+    },
+    "start": Object {
+      "column": 0,
+      "line": 1,
+    },
+  },
+  "range": Array [
+    0,
+    41,
+  ],
+  "sourceType": "script",
+  "tokens": Array [
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 9,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 0,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        0,
+        9,
+      ],
+      "type": "Keyword",
+      "value": "interface",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 13,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 10,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        10,
+        13,
+      ],
+      "type": "Identifier",
+      "value": "foo",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 21,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 14,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        14,
+        21,
+      ],
+      "type": "Keyword",
+      "value": "extends",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 25,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 22,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        22,
+        25,
+      ],
+      "type": "Identifier",
+      "value": "bar",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 33,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 26,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        26,
+        33,
+      ],
+      "type": "Keyword",
+      "value": "extends",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 37,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 34,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        34,
+        37,
+      ],
+      "type": "Identifier",
+      "value": "baz",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 39,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 38,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        38,
+        39,
+      ],
+      "type": "Punctuator",
+      "value": "{",
+    },
+    Object {
+      "loc": Object {
+        "end": Object {
+          "column": 40,
+          "line": 1,
+        },
+        "start": Object {
+          "column": 39,
+          "line": 1,
+        },
+      },
+      "range": Array [
+        39,
+        40,
+      ],
+      "type": "Punctuator",
+      "value": "}",
+    },
+  ],
+  "type": "Program",
+}
+`;
+
 exports[`typescript fixtures/errorRecovery/interface-property-export.src 1`] = `
 Object {
   "body": Array [
@@ -84677,7 +85429,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -84990,7 +85741,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -85303,7 +86053,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -85616,7 +86365,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -85929,7 +86677,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -86260,7 +87007,6 @@ Object {
         ],
         "type": "TSInterfaceBody",
       },
-      "heritage": Array [],
       "id": Object {
         "loc": Object {
           "end": Object {
@@ -90388,7 +91134,6 @@ Object {
                         ],
                         "type": "TSInterfaceBody",
                       },
-                      "heritage": Array [],
                       "id": Object {
                         "loc": Object {
                           "end": Object {