refactor(RegExp): use /.../ to create RegExp literal

fixes #2691

modules/angular2/test/change_detection/parser/unparser.ts

@@ -23,11 +23,10 @@ import {
 } from 'angular2/src/change_detection/parser/ast';
 
 
-import {StringWrapper, RegExpWrapper, isPresent, isString} from 'angular2/src/facade/lang';
-
-var quoteRegExp = RegExpWrapper.create('"');
+import {StringWrapper, isPresent, isString} from 'angular2/src/facade/lang';
 
 export class Unparser implements AstVisitor {
+  private static _quoteRegExp = /"/g;
   private _expression: string;
 
   unparse(ast: AST) {
@@ -151,7 +150,7 @@ export class Unparser implements AstVisitor {
 
   visitLiteralPrimitive(ast: LiteralPrimitive) {
     if (isString(ast.value)) {
-      this._expression += `"${StringWrapper.replaceAll(ast.value, quoteRegExp, '\"')}"`;
+      this._expression += `"${StringWrapper.replaceAll(ast.value, Unparser._quoteRegExp, '\"')}"`;
     } else {
       this._expression += `${ast.value}`;
     }

modules/angular2/test/facade/lang_spec.ts

@@ -10,7 +10,7 @@ import {
 export function main() {
   describe('RegExp', () => {
     it('should expose the index for each match', () => {
-      var re = RegExpWrapper.create('(!)');
+      var re = /(!)/g;
       var matcher = RegExpWrapper.matcher(re, '0!23!567!!');
       var indexes = [];
       var m;

modules/angular2/test/render/dom/shadow_dom/shadow_css_spec.ts

@@ -20,7 +20,7 @@ export function main() {
     function s(css: string, contentAttr: string, hostAttr: string = '') {
       var shadowCss = new ShadowCss();
       var shim = shadowCss.shimCssText(css, contentAttr, hostAttr);
-      var nlRegexp = RegExpWrapper.create('\\n');
+      var nlRegexp = /\n/g;
       return normalizeCSS(StringWrapper.replaceAll(shim, nlRegexp, ''));
     }
 
@@ -61,8 +61,7 @@ export function main() {
         isPresent(DOM.defaultDoc().body.style.animationName)) {
       it('should handle keyframes rules', () => {
         var css = '@keyframes foo {0% {transform: translate(-50%) scaleX(0);}}';
-        var passRe = RegExpWrapper.create(
-            '@keyframes foo {\\s*0% {\\s*transform:translate\\(-50%\\) scaleX\\(0\\);\\s*}\\s*}');
+        var passRe = /@keyframes foo {\s*0% {\s*transform:translate\(-50%\) scaleX\(0\);\s*}\s*}/g;
         expect(RegExpWrapper.test(passRe, s(css, 'a'))).toEqual(true);
       });
     }
@@ -70,8 +69,8 @@ export function main() {
     if (DOM.getUserAgent().indexOf('AppleWebKit') > -1) {
       it('should handle -webkit-keyframes rules', () => {
         var css = '@-webkit-keyframes foo {0% {-webkit-transform: translate(-50%) scaleX(0);}}';
-        var passRe = RegExpWrapper.create(
-            '@-webkit-keyframes foo {\\s*0% {\\s*(-webkit-)*transform:translate\\(-50%\\) scaleX\\(0\\);\\s*}}');
+        var passRe =
+            /@-webkit-keyframes foo {\s*0% {\s*(-webkit-)*transform:translate\(-50%\) scaleX\(0\);\s*}}/g;
         expect(RegExpWrapper.test(passRe, s(css, 'a'))).toEqual(true);
       });
     }