dart2js: Use js('source') instead of js['source'] to invoke JS mini-parser

sdk/lib/_internal/compiler/implementation/js/builder.dart

Index: sdk/lib/_internal/compiler/implementation/js/builder.dart
diff --git a/sdk/lib/_internal/compiler/implementation/js/builder.dart b/sdk/lib/_internal/compiler/implementation/js/builder.dart
index 54924661451afbe5d21a995fef2307daf70a8286..0aa45b70d05e5c98020a5fa6ee6babd5e1a19e51 100644
--- a/sdk/lib/_internal/compiler/implementation/js/builder.dart
+++ b/sdk/lib/_internal/compiler/implementation/js/builder.dart
@@ -7,23 +7,13 @@
 
 part of js;
 
+Expression js(String source) {

[ahe, 2013/04/05 13:47:20]

You could also have JsBuilder implement Function.

+  return new MiniJsParser(source).expression();
+}
+
 class JsBuilder {
   const JsBuilder();
 
-  Expression operator [](String source) {
-    return new MiniJsParser(source).expression();
-  }
-
-  // TODO(ahe): Remove this method.
-  Binary equals(Expression left, Expression right) {
-    return new Binary('==', left, right);
-  }
-
-  // TODO(ahe): Remove this method.
-  Binary strictEquals(Expression left, Expression right) {
-    return new Binary('===', left, right);
-  }
-
   LiteralString string(String value) => new LiteralString('"$value"');
 
   If if_(condition, thenPart, [elsePart]) {
@@ -92,7 +82,7 @@ class JsBuilder {
     if (expression is Expression) {
       return expression;
     } else if (expression is String) {
-      return this[expression];
+      return js(expression);
     } else if (expression is num) {
       return new LiteralNumber('$expression');
     } else if (expression is bool) {
@@ -134,9 +124,9 @@ class JsBuilder {
   Comment comment(String text) => new Comment(text);
 }
 
-const JsBuilder js = const JsBuilder();
+const JsBuilder jsBuilder = const JsBuilder();
 
-LiteralString string(String value) => js.string(value);
+LiteralString string(String value) => jsBuilder.string(value);
 
 class MiniJsParserError {
   MiniJsParserError(this.parser, this.message) { }