dart2js: remove JS_OBJECT_CLASS_NAME and JS_NULL_CLASS_NAME from foreign

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

Index: pkg/compiler/lib/src/js_emitter/new_emitter/emitter.dart
diff --git a/pkg/compiler/lib/src/js_emitter/new_emitter/emitter.dart b/pkg/compiler/lib/src/js_emitter/new_emitter/emitter.dart
index aeeddc3afb936ee0a358f463cc47d5613669c1a3..32a4da6d00e5306268c0013cb972549f7903112f 100644
--- a/pkg/compiler/lib/src/js_emitter/new_emitter/emitter.dart
+++ b/pkg/compiler/lib/src/js_emitter/new_emitter/emitter.dart
@@ -147,13 +147,6 @@ class Emitter implements emitterTask.Emitter {
       case JsBuiltin.isFunctionType:
         return _backend.rti.representationGenerator.templateForIsFunctionType;
 
-      case JsBuiltin.isFunctionTypeLiteral:
-        String functionClassName =
-            _backend.namer.runtimeTypeName(_compiler.functionClass);
-
-        return js.js.expressionTemplateFor(
-            '#.$typeNameProperty === "$functionClassName"');
-
       case JsBuiltin.typeName:
         return js.js.expressionTemplateFor("#.$typeNameProperty");
 
@@ -170,6 +163,24 @@ class Emitter implements emitterTask.Emitter {
         String isPrefix = namer.operatorIsPrefix;
         return js.js.expressionTemplateFor("('$isPrefix' + #) in #.prototype");
 
+      case JsBuiltin.isFunctionTypeRti:
+        String functionClassName =
+            _backend.namer.runtimeTypeName(_compiler.functionClass);
+        return js.js.expressionTemplateFor(
+            '#.$typeNameProperty === "$functionClassName"');
+
+      case JsBuiltin.isNullTypeRti:
+        String nullClassName =
+            _backend.namer.runtimeTypeName(_compiler.nullClass);
+        return js.js.expressionTemplateFor(
+            '#.$typeNameProperty === "$nullClassName"');
+
+      case JsBuiltin.isDartObjectTypeRti:
+        String dartObjectClassName =
+            _backend.namer.runtimeTypeName(_compiler.objectClass);
+        return js.js.expressionTemplateFor(
+            '#.$typeNameProperty === "$dartObjectClassName"');
+
       case JsBuiltin.getMetadata:
         return _emitter.templateForReadMetadata;