Fixes in codegen and test script

lib/src/js/printer.dart

Index: lib/src/js/printer.dart
diff --git a/lib/src/js/printer.dart b/lib/src/js/printer.dart
index 5ac0780e0ee07f7d221a7d538a2907805da9edb1..1ee33043bfec4629b53a9df6dde7343b59537d7f 100644
--- a/lib/src/js/printer.dart
+++ b/lib/src/js/printer.dart
@@ -812,7 +812,7 @@ class Printer implements NodeVisitor {
     }
 
     if (options.avoidKeywordsInIdentifiers) {
-      return !_isJsKeyword(field.substring(1, field.length - 1));
+      return !isJsKeyword(field.substring(1, field.length - 1));
     } else {
       // TODO(floitsch): normally we should also check that the field is not a
       // reserved word.  We don't generate fields with reserved word names except
@@ -821,48 +821,6 @@ class Printer implements NodeVisitor {
     }
   }
 
-  static bool _isJsKeyword(String keyword) {
-    switch (keyword) {
-      case "break":
-      case "case":
-      case "catch":
-      case "class":
-      case "const":
-      case "continue":
-      case "debugger":
-      case "default":
-      case "delete":
-      case "do":
-      case "else":
-      case "export":
-      case "extends":
-      case "finally":
-      case "for":
-      case "function":
-      case "if":
-      case "import":
-      case "in":
-      case "instanceof":
-      case "let":
-      case "new":
-      case "return":
-      case "static":
-      case "super":
-      case "switch":
-      case "this":
-      case "throw":
-      case "try":
-      case "typeof":
-      case "var":
-      case "void":
-      case "while":
-      case "with":
-      case "yield":
-        return true;
-    }
-    return false;
-  }
-
   visitAccess(PropertyAccess access) {
     visitNestedExpression(access.receiver, CALL,
                           newInForInit: inForInit,