From a546850ac5c30a1b8a835497abe9f7e92e9f2b95 Mon Sep 17 00:00:00 2001
From: Kanchalai Tanglertsampan <yuisu@microsoft.com>
Date: Thu, 21 Jul 2016 10:03:33 -0700
Subject: [PATCH 1/6] Only error in non-declaration file

---
 src/compiler/program.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/program.ts b/src/compiler/program.ts
index 39a55afe27a13..51d415e7a02fe 100644
--- a/src/compiler/program.ts
+++ b/src/compiler/program.ts
@@ -2275,7 +2275,7 @@ namespace ts {
                     programDiagnostics.add(createFileDiagnostic(firstNonExternalModuleSourceFile, span.start, span.length, Diagnostics.Cannot_compile_namespaces_when_the_isolatedModules_flag_is_provided));
                 }
             }
-            else if (firstExternalModuleSourceFile && languageVersion < ScriptTarget.ES6 && options.module === ModuleKind.None) {
+            else if (firstExternalModuleSourceFile && !isDeclarationFile(firstExternalModuleSourceFile) && languageVersion < ScriptTarget.ES6 && options.module === ModuleKind.None) {
                 // We cannot use createDiagnosticFromNode because nodes do not have parents yet
                 const span = getErrorSpanForNode(firstExternalModuleSourceFile, firstExternalModuleSourceFile.externalModuleIndicator);
                 programDiagnostics.add(createFileDiagnostic(firstExternalModuleSourceFile, span.start, span.length, Diagnostics.Cannot_use_imports_exports_or_module_augmentations_when_module_is_none));

From 1e3cc0bc5b6b85e4981daaa35560eb6f1cb09923 Mon Sep 17 00:00:00 2001
From: Kanchalai Tanglertsampan <yuisu@microsoft.com>
Date: Thu, 21 Jul 2016 10:05:14 -0700
Subject: [PATCH 2/6] Add tests and baselines

---
 ...mportExportModuleAugmentationInDeclarationFile.symbols | 8 ++++++++
 ...gImportExportModuleAugmentationInDeclarationFile.types | 8 ++++++++
 ...singImportExportModuleAugmentationInDeclarationFile.ts | 5 +++++
 3 files changed, 21 insertions(+)
 create mode 100644 tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile.symbols
 create mode 100644 tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile.types
 create mode 100644 tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile.ts

diff --git a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile.symbols b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile.symbols
new file mode 100644
index 0000000000000..5fbefb77b471c
--- /dev/null
+++ b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile.symbols
@@ -0,0 +1,8 @@
+=== tests/cases/compiler/0.d.ts ===
+
+export = a; //  error TS1148: Cannot use imports, exports, or module augmentations when '--module' is 'none'.
+>a : Symbol(a, Decl(0.d.ts, 2, 11))
+
+declare var a: number;
+>a : Symbol(a, Decl(0.d.ts, 2, 11))
+
diff --git a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile.types b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile.types
new file mode 100644
index 0000000000000..22dac6dab12ff
--- /dev/null
+++ b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile.types
@@ -0,0 +1,8 @@
+=== tests/cases/compiler/0.d.ts ===
+
+export = a; //  error TS1148: Cannot use imports, exports, or module augmentations when '--module' is 'none'.
+>a : number
+
+declare var a: number;
+>a : number
+
diff --git a/tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile.ts b/tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile.ts
new file mode 100644
index 0000000000000..48f15e6d3b840
--- /dev/null
+++ b/tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile.ts
@@ -0,0 +1,5 @@
+// @module: none
+// @filename: 0.d.ts
+
+export = a; //  error TS1148: Cannot use imports, exports, or module augmentations when '--module' is 'none'.
+declare var a: number;
\ No newline at end of file

From dbed41a47443a171e9c8483901023cf34bb71582 Mon Sep 17 00:00:00 2001
From: Kanchalai Tanglertsampan <yuisu@microsoft.com>
Date: Thu, 21 Jul 2016 14:17:10 -0700
Subject: [PATCH 3/6] Addess PR: get the first non-ambient external module file

---
 src/compiler/program.ts | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/compiler/program.ts b/src/compiler/program.ts
index 51d415e7a02fe..d70d1f8f60d9e 100644
--- a/src/compiler/program.ts
+++ b/src/compiler/program.ts
@@ -2263,7 +2263,7 @@ namespace ts {
             const languageVersion = options.target || ScriptTarget.ES3;
             const outFile = options.outFile || options.out;
 
-            const firstExternalModuleSourceFile = forEach(files, f => isExternalModule(f) ? f : undefined);
+            const firstNonAmbientExternalModuleSourceFile = forEach(files, f => isExternalModule(f) && !isDeclarationFile(f) ? f : undefined);
             if (options.isolatedModules) {
                 if (options.module === ModuleKind.None && languageVersion < ScriptTarget.ES6) {
                     programDiagnostics.add(createCompilerDiagnostic(Diagnostics.Option_isolatedModules_can_only_be_used_when_either_option_module_is_provided_or_option_target_is_ES2015_or_higher));
@@ -2275,10 +2275,10 @@ namespace ts {
                     programDiagnostics.add(createFileDiagnostic(firstNonExternalModuleSourceFile, span.start, span.length, Diagnostics.Cannot_compile_namespaces_when_the_isolatedModules_flag_is_provided));
                 }
             }
-            else if (firstExternalModuleSourceFile && !isDeclarationFile(firstExternalModuleSourceFile) && languageVersion < ScriptTarget.ES6 && options.module === ModuleKind.None) {
+            else if (firstNonAmbientExternalModuleSourceFile && languageVersion < ScriptTarget.ES6 && options.module === ModuleKind.None) {
                 // We cannot use createDiagnosticFromNode because nodes do not have parents yet
-                const span = getErrorSpanForNode(firstExternalModuleSourceFile, firstExternalModuleSourceFile.externalModuleIndicator);
-                programDiagnostics.add(createFileDiagnostic(firstExternalModuleSourceFile, span.start, span.length, Diagnostics.Cannot_use_imports_exports_or_module_augmentations_when_module_is_none));
+                const span = getErrorSpanForNode(firstNonAmbientExternalModuleSourceFile, firstNonAmbientExternalModuleSourceFile.externalModuleIndicator);
+                programDiagnostics.add(createFileDiagnostic(firstNonAmbientExternalModuleSourceFile, span.start, span.length, Diagnostics.Cannot_use_imports_exports_or_module_augmentations_when_module_is_none));
             }
 
             // Cannot specify module gen that isn't amd or system with --out
@@ -2286,9 +2286,9 @@ namespace ts {
                 if (options.module && !(options.module === ModuleKind.AMD || options.module === ModuleKind.System)) {
                     programDiagnostics.add(createCompilerDiagnostic(Diagnostics.Only_amd_and_system_modules_are_supported_alongside_0, options.out ? "out" : "outFile"));
                 }
-                else if (options.module === undefined && firstExternalModuleSourceFile) {
-                    const span = getErrorSpanForNode(firstExternalModuleSourceFile, firstExternalModuleSourceFile.externalModuleIndicator);
-                    programDiagnostics.add(createFileDiagnostic(firstExternalModuleSourceFile, span.start, span.length, Diagnostics.Cannot_compile_modules_using_option_0_unless_the_module_flag_is_amd_or_system, options.out ? "out" : "outFile"));
+                else if (options.module === undefined && firstNonAmbientExternalModuleSourceFile) {
+                    const span = getErrorSpanForNode(firstNonAmbientExternalModuleSourceFile, firstNonAmbientExternalModuleSourceFile.externalModuleIndicator);
+                    programDiagnostics.add(createFileDiagnostic(firstNonAmbientExternalModuleSourceFile, span.start, span.length, Diagnostics.Cannot_compile_modules_using_option_0_unless_the_module_flag_is_amd_or_system, options.out ? "out" : "outFile"));
                 }
             }
 

From 45f9d6e36800ac72d2b913e642bff0fa5496574e Mon Sep 17 00:00:00 2001
From: Kanchalai Tanglertsampan <yuisu@microsoft.com>
Date: Thu, 21 Jul 2016 14:18:20 -0700
Subject: [PATCH 4/6] Rename test file and update baseline

---
 ...ImportExportModuleAugmentationInDeclarationFile1.symbols} | 0
 ...ngImportExportModuleAugmentationInDeclarationFile1.types} | 0
 ...orUsingImportExportModuleAugmentationInDeclarationFile.ts | 5 -----
 ...rUsingImportExportModuleAugmentationInDeclarationFile1.ts | 5 +++++
 4 files changed, 5 insertions(+), 5 deletions(-)
 rename tests/baselines/reference/{noErrorUsingImportExportModuleAugmentationInDeclarationFile.symbols => noErrorUsingImportExportModuleAugmentationInDeclarationFile1.symbols} (100%)
 rename tests/baselines/reference/{noErrorUsingImportExportModuleAugmentationInDeclarationFile.types => noErrorUsingImportExportModuleAugmentationInDeclarationFile1.types} (100%)
 delete mode 100644 tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile.ts
 create mode 100644 tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.ts

diff --git a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile.symbols b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.symbols
similarity index 100%
rename from tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile.symbols
rename to tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.symbols
diff --git a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile.types b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.types
similarity index 100%
rename from tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile.types
rename to tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.types
diff --git a/tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile.ts b/tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile.ts
deleted file mode 100644
index 48f15e6d3b840..0000000000000
--- a/tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-// @module: none
-// @filename: 0.d.ts
-
-export = a; //  error TS1148: Cannot use imports, exports, or module augmentations when '--module' is 'none'.
-declare var a: number;
\ No newline at end of file
diff --git a/tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.ts b/tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.ts
new file mode 100644
index 0000000000000..71ec411a4f5ce
--- /dev/null
+++ b/tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.ts
@@ -0,0 +1,5 @@
+// @module: none
+// @filename: 0.d.ts
+
+export = a;
+declare var a: number;
\ No newline at end of file

From 0f16343a158d46c1af835109f676d98888d11ce7 Mon Sep 17 00:00:00 2001
From: Kanchalai Tanglertsampan <yuisu@microsoft.com>
Date: Thu, 21 Jul 2016 14:19:20 -0700
Subject: [PATCH 5/6] Add tests and baselines

---
 ...ModuleAugmentationInDeclarationFile2.errors.txt | 12 ++++++++++++
 ...rtExportModuleAugmentationInDeclarationFile2.js | 13 +++++++++++++
 ...ModuleAugmentationInDeclarationFile3.errors.txt | 13 +++++++++++++
 ...rtExportModuleAugmentationInDeclarationFile3.js | 14 ++++++++++++++
 ...rtExportModuleAugmentationInDeclarationFile2.ts |  8 ++++++++
 ...rtExportModuleAugmentationInDeclarationFile3.ts |  8 ++++++++
 6 files changed, 68 insertions(+)
 create mode 100644 tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.errors.txt
 create mode 100644 tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.js
 create mode 100644 tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.errors.txt
 create mode 100644 tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.js
 create mode 100644 tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.ts
 create mode 100644 tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.ts

diff --git a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.errors.txt b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.errors.txt
new file mode 100644
index 0000000000000..2403d0ce36623
--- /dev/null
+++ b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.errors.txt
@@ -0,0 +1,12 @@
+tests/cases/compiler/1.ts(2,1): error TS1148: Cannot use imports, exports, or module augmentations when '--module' is 'none'.
+
+
+==== tests/cases/compiler/1.ts (1 errors) ====
+    
+    export var j = "hello"
+    ~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS1148: Cannot use imports, exports, or module augmentations when '--module' is 'none'.
+    
+==== tests/cases/compiler/0.d.ts (0 errors) ====
+    export = a;
+    declare var a: number;
\ No newline at end of file
diff --git a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.js b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.js
new file mode 100644
index 0000000000000..b9d556e57dbec
--- /dev/null
+++ b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.js
@@ -0,0 +1,13 @@
+//// [tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.ts] ////
+
+//// [1.ts]
+
+export var j = "hello"
+
+//// [0.d.ts]
+export = a;
+declare var a: number;
+
+//// [1.js]
+"use strict";
+exports.j = "hello";
diff --git a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.errors.txt b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.errors.txt
new file mode 100644
index 0000000000000..f417582c5f6cb
--- /dev/null
+++ b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.errors.txt
@@ -0,0 +1,13 @@
+tests/cases/compiler/1.ts(1,1): error TS1148: Cannot use imports, exports, or module augmentations when '--module' is 'none'.
+
+
+==== tests/cases/compiler/0.d.ts (0 errors) ====
+    
+    export = a;
+    declare var a: number;
+    
+==== tests/cases/compiler/1.ts (1 errors) ====
+    export var j = "hello"
+    ~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS1148: Cannot use imports, exports, or module augmentations when '--module' is 'none'.
+    
\ No newline at end of file
diff --git a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.js b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.js
new file mode 100644
index 0000000000000..a5fc871662bcd
--- /dev/null
+++ b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.js
@@ -0,0 +1,14 @@
+//// [tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.ts] ////
+
+//// [0.d.ts]
+
+export = a;
+declare var a: number;
+
+//// [1.ts]
+export var j = "hello"
+
+
+//// [1.js]
+"use strict";
+exports.j = "hello";
diff --git a/tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.ts b/tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.ts
new file mode 100644
index 0000000000000..160f80dba972c
--- /dev/null
+++ b/tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.ts
@@ -0,0 +1,8 @@
+// @module: none
+
+// @filename: 1.ts
+export var j = "hello"; // error
+
+// @filename: 0.d.ts
+export = a;
+declare var a: number;
\ No newline at end of file
diff --git a/tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.ts b/tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.ts
new file mode 100644
index 0000000000000..e13933a13d0a4
--- /dev/null
+++ b/tests/cases/compiler/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.ts
@@ -0,0 +1,8 @@
+// @module: none
+
+// @filename: 0.d.ts
+export = a;
+declare var a: number;
+
+// @filename: 1.ts
+export var j = "hello";  // error

From 194ecb8c4f3361a170fb1201164169cc5201f005 Mon Sep 17 00:00:00 2001
From: Yui T <yuisu@microsoft.com>
Date: Thu, 21 Jul 2016 21:24:55 -0700
Subject: [PATCH 6/6] Update baselines

---
 ...ngImportExportModuleAugmentationInDeclarationFile1.symbols | 2 +-
 ...singImportExportModuleAugmentationInDeclarationFile1.types | 2 +-
 ...mportExportModuleAugmentationInDeclarationFile2.errors.txt | 4 ++--
 ...orUsingImportExportModuleAugmentationInDeclarationFile2.js | 4 ++--
 ...mportExportModuleAugmentationInDeclarationFile3.errors.txt | 4 ++--
 ...orUsingImportExportModuleAugmentationInDeclarationFile3.js | 4 ++--
 6 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.symbols b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.symbols
index 5fbefb77b471c..d3d338e0d14d7 100644
--- a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.symbols
+++ b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.symbols
@@ -1,6 +1,6 @@
 === tests/cases/compiler/0.d.ts ===
 
-export = a; //  error TS1148: Cannot use imports, exports, or module augmentations when '--module' is 'none'.
+export = a;
 >a : Symbol(a, Decl(0.d.ts, 2, 11))
 
 declare var a: number;
diff --git a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.types b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.types
index 22dac6dab12ff..c5e2c0b80f889 100644
--- a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.types
+++ b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile1.types
@@ -1,6 +1,6 @@
 === tests/cases/compiler/0.d.ts ===
 
-export = a; //  error TS1148: Cannot use imports, exports, or module augmentations when '--module' is 'none'.
+export = a;
 >a : number
 
 declare var a: number;
diff --git a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.errors.txt b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.errors.txt
index 2403d0ce36623..bcf5d91c01510 100644
--- a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.errors.txt
+++ b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.errors.txt
@@ -3,8 +3,8 @@ tests/cases/compiler/1.ts(2,1): error TS1148: Cannot use imports, exports, or mo
 
 ==== tests/cases/compiler/1.ts (1 errors) ====
     
-    export var j = "hello"
-    ~~~~~~~~~~~~~~~~~~~~~~
+    export var j = "hello"; // error
+    ~~~~~~~~~~~~~~~~~~~~~~~
 !!! error TS1148: Cannot use imports, exports, or module augmentations when '--module' is 'none'.
     
 ==== tests/cases/compiler/0.d.ts (0 errors) ====
diff --git a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.js b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.js
index b9d556e57dbec..b56988de44cbb 100644
--- a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.js
+++ b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile2.js
@@ -2,7 +2,7 @@
 
 //// [1.ts]
 
-export var j = "hello"
+export var j = "hello"; // error
 
 //// [0.d.ts]
 export = a;
@@ -10,4 +10,4 @@ declare var a: number;
 
 //// [1.js]
 "use strict";
-exports.j = "hello";
+exports.j = "hello"; // error
diff --git a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.errors.txt b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.errors.txt
index f417582c5f6cb..eb215693cd756 100644
--- a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.errors.txt
+++ b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.errors.txt
@@ -7,7 +7,7 @@ tests/cases/compiler/1.ts(1,1): error TS1148: Cannot use imports, exports, or mo
     declare var a: number;
     
 ==== tests/cases/compiler/1.ts (1 errors) ====
-    export var j = "hello"
-    ~~~~~~~~~~~~~~~~~~~~~~
+    export var j = "hello";  // error
+    ~~~~~~~~~~~~~~~~~~~~~~~
 !!! error TS1148: Cannot use imports, exports, or module augmentations when '--module' is 'none'.
     
\ No newline at end of file
diff --git a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.js b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.js
index a5fc871662bcd..8c75af240346e 100644
--- a/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.js
+++ b/tests/baselines/reference/noErrorUsingImportExportModuleAugmentationInDeclarationFile3.js
@@ -6,9 +6,9 @@ export = a;
 declare var a: number;
 
 //// [1.ts]
-export var j = "hello"
+export var j = "hello";  // error
 
 
 //// [1.js]
 "use strict";
-exports.j = "hello";
+exports.j = "hello"; // error