Merge pull request #2766 from Microsoft/addTestforAsContextualKeyword

Add test to make sure that we don't use "as" as keyword

Author: yuit

tests/baselines/reference/strictModeUseContextualKeyword.js

@@ -0,0 +1,31 @@
+//// [strictModeUseContextualKeyword.ts]
+"use strict"
+var as = 0;
+function foo(as: string) { }
+class C {
+    public as() { }
+}
+function F() {
+    function as() { }
+}
+function H() {
+    let {as} = { as: 1 };
+}
+
+
+//// [strictModeUseContextualKeyword.js]
+"use strict";
+var as = 0;
+function foo(as) { }
+var C = (function () {
+    function C() {
+    }
+    C.prototype.as = function () { };
+    return C;
+})();
+function F() {
+    function as() { }
+}
+function H() {
+    var as = ({ as: 1 }).as;
+}

tests/baselines/reference/strictModeUseContextualKeyword.types

@@ -0,0 +1,34 @@
+=== tests/cases/compiler/strictModeUseContextualKeyword.ts ===
+"use strict"
+>"use strict" : string
+
+var as = 0;
+>as : number, Symbol(as, Decl(strictModeUseContextualKeyword.ts, 1, 3))
+>0 : number
+
+function foo(as: string) { }
+>foo : (as: string) => void, Symbol(foo, Decl(strictModeUseContextualKeyword.ts, 1, 11))
+>as : string, Symbol(as, Decl(strictModeUseContextualKeyword.ts, 2, 13))
+
+class C {
+>C : C, Symbol(C, Decl(strictModeUseContextualKeyword.ts, 2, 28))
+
+    public as() { }
+>as : () => void, Symbol(as, Decl(strictModeUseContextualKeyword.ts, 3, 9))
+}
+function F() {
+>F : () => void, Symbol(F, Decl(strictModeUseContextualKeyword.ts, 5, 1))
+
+    function as() { }
+>as : () => void, Symbol(as, Decl(strictModeUseContextualKeyword.ts, 6, 14))
+}
+function H() {
+>H : () => void, Symbol(H, Decl(strictModeUseContextualKeyword.ts, 8, 1))
+
+    let {as} = { as: 1 };
+>as : number, Symbol(as, Decl(strictModeUseContextualKeyword.ts, 10, 9))
+>{ as: 1 } : { as: number; }
+>as : number, Symbol(as, Decl(strictModeUseContextualKeyword.ts, 10, 16))
+>1 : number
+}
+

tests/cases/compiler/strictModeUseContextualKeyword.ts

@@ -0,0 +1,12 @@
+"use strict"
+var as = 0;
+function foo(as: string) { }
+class C {
+    public as() { }
+}
+function F() {
+    function as() { }
+}
+function H() {
+    let {as} = { as: 1 };
+}