dart2js: Cleanups and renames in runtime code that thouches types.

pkg/compiler/lib/src/js_emitter/old_emitter/emitter.dart

Index: pkg/compiler/lib/src/js_emitter/old_emitter/emitter.dart
diff --git a/pkg/compiler/lib/src/js_emitter/old_emitter/emitter.dart b/pkg/compiler/lib/src/js_emitter/old_emitter/emitter.dart
index 310a243edbd8b04a87c8333a4672b709c59d4e19..9de1ce2a38cc91849d6584f5f28c666d5e0b917b 100644
--- a/pkg/compiler/lib/src/js_emitter/old_emitter/emitter.dart
+++ b/pkg/compiler/lib/src/js_emitter/old_emitter/emitter.dart
@@ -276,20 +276,20 @@ class OldEmitter implements Emitter {
         return jsAst.js.expressionTemplateYielding(
             typeAccess(compiler.objectClass));
 
-      case JsBuiltin.classNameFromIsCheckProperty:
+      case JsBuiltin.isCheckPropertyToJsConstructorName:
         int isPrefixLength = namer.operatorIsPrefix.length;
         return jsAst.js.expressionTemplateFor('#.substring($isPrefixLength)');
 
       case JsBuiltin.isFunctionType:
         return backend.rti.representationGenerator.templateForIsFunctionType;
 
-      case JsBuiltin.typeName:
+      case JsBuiltin.rawRtiToJsConstructorName:
         return jsAst.js.expressionTemplateFor("#.$typeNameProperty");
 
       case JsBuiltin.rawRuntimeType:
         return jsAst.js.expressionTemplateFor("#.constructor");
 
-      case JsBuiltin.createFunctionType:
+      case JsBuiltin.createFunctionTypeRti:
         return backend.rti.representationGenerator
             .templateForCreateFunctionType;