Ensure that the entire contents are simply 'use strict'.

DanielRosenwasser · DanielRosenwasser · commit e9e8837474c3 · 2016-04-07T00:47:29.000-07:00
diff --git a/src/compiler/emitter.ts b/src/compiler/emitter.ts
@@ -7651,7 +7651,7 @@ const _super = (function (geti, seti) {
             }
 
             function isUseStrictPrologue(node: ExpressionStatement): boolean {
-                return !!(node.expression as StringLiteral).text.match(/use strict/);
+                return (node.expression as StringLiteral).text === "use strict";
             }
 
             function ensureUseStrictPrologue(startWithNewLine: boolean, writeUseStrict: boolean) {

Original file line number	Diff line number	Diff line change
`@@ -7651,7 +7651,7 @@ const _super = (function (geti, seti) {`
`7651`	`7651`	`}`
`7652`	`7652`
`7653`	`7653`	`function isUseStrictPrologue(node: ExpressionStatement): boolean {`
`7654`		`- return !!(node.expression as StringLiteral).text.match(/use strict/);`
	`7654`	`+ return (node.expression as StringLiteral).text === "use strict";`
`7655`	`7655`	`}`
`7656`	`7656`
`7657`	`7657`	`function ensureUseStrictPrologue(startWithNewLine: boolean, writeUseStrict: boolean) {`