dart2js: add compiler builtins to the core-runtime.

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

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of dart2js.js_emitter;
 
 
 class OldEmitter implements Emitter {
   final Compiler compiler;
   final CodeEmitterTask task;
@@ skipping 251 matching lines @@
   @override
   jsAst.PropertyAccess interceptorClassAccess(ClassElement element) {
     return globalPropertyAccess(element);
   }
 
   @override
   jsAst.PropertyAccess typeAccess(Element element) {
     return globalPropertyAccess(element);
   }
 
+  @override
+  jsAst.Template templateForBuiltin(JsBuiltin builtin) {
+    switch (builtin) {
+      case JsBuiltin.dartObjectConstructor:
+        return jsAst.js.expressionTemplateYielding(
+            typeAccess(compiler.objectClass));
+
+      case JsBuiltin.isFunctionType:
+        return backend.rti.representationGenerator.templateForIsFunctionType;
+
+      case JsBuiltin.isFunctionTypeLiteral:
+        String functionClassName =
+            backend.namer.runtimeTypeName(compiler.functionClass);
+        return jsAst.js.expressionTemplateFor(
+          '#.$typeNameProperty === "$functionClassName"');
+
+      case JsBuiltin.typeName:
+        return jsAst.js.expressionTemplateFor("#.$typeNameProperty");
+
+      case JsBuiltin.rawRuntimeType:
+        return jsAst.js.expressionTemplateFor("#.constructor");
+
+      case JsBuiltin.createFunctionType:
+        return backend.rti.representationGenerator
+            .templateForCreateFunctionType;
+
+      default:
+        compiler.internalError(NO_LOCATION_SPANNABLE,
+            "Unhandled Builtin: $builtin");
+        return null;
+    }
+  }
+
   List<jsAst.Statement> buildTrivialNsmHandlers(){
     return nsmEmitter.buildTrivialNsmHandlers();
   }
 
   jsAst.Statement buildNativeInfoHandler(
       jsAst.Expression infoAccess,
       jsAst.Expression constructorAccess,
       jsAst.Expression subclassReadGenerator(jsAst.Expression subclass),
       jsAst.Expression interceptorsByTagAccess,
       jsAst.Expression leafTagsAccess) {
@@ skipping 726 matching lines @@
         new jsAst.FunctionDeclaration(
             new jsAst.VariableDeclaration(constructorName), constructorAst));
 
     String fieldNamesProperty = FIELD_NAMES_PROPERTY_NAME;
     bool hasIsolateSupport = compiler.hasIsolateSupport;
     jsAst.Node fieldNamesArray =
         hasIsolateSupport ? js.stringArray(fields) : new jsAst.LiteralNull();
 
     cspPrecompiledFunctionFor(outputUnit).add(js.statement(r'''
         {
-          #constructorName.builtin$cls = #constructorNameString;
+          #constructorName.#typeNameProperty = #constructorNameString;
           if (!"name" in #constructorName)
               #constructorName.name = #constructorNameString;
           $desc = $collectedClasses.#constructorName[1];
           #constructorName.prototype = $desc;
           ''' /* next string is not a raw string */ '''
           if (#hasIsolateSupport) {
             #constructorName.$fieldNamesProperty = #fieldNamesArray;
           }
         }''',
         {"constructorName": constructorName,
+         "typeNameProperty": typeNameProperty,
          "constructorNameString": js.string(constructorName),
          "hasIsolateSupport": hasIsolateSupport,
          "fieldNamesArray": fieldNamesArray}));
 
     cspPrecompiledConstructorNamesFor(outputUnit).add(js('#', constructorName));
   }
 
   void emitTypedefs() {
     OutputUnit mainOutputUnit = compiler.deferredLoadTask.mainOutputUnit;
 
@@ skipping 837 matching lines @@
     for (Element element in compiler.enqueuer.codegen.newlyEnqueuedElements) {
       if (element.isInstanceMember) {
         cachedClassBuilders.remove(element.enclosingClass);
 
         nativeEmitter.cachedBuilders.remove(element.enclosingClass);
 
       }
     }
   }
 }