dart2js: Use is-checks from the model in the old emitter.

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;
 
   final ContainerBuilder containerBuilder = new ContainerBuilder();
   final ClassEmitter classEmitter = new ClassEmitter();
   final NsmEmitter nsmEmitter = new NsmEmitter();
-  final TypeTestEmitter typeTestEmitter = new TypeTestEmitter();
   final InterceptorEmitter interceptorEmitter = new InterceptorEmitter();
   final MetadataEmitter metadataEmitter = new MetadataEmitter();
 
   // TODO(johnniwinther): Wrap these fields in a caching strategy.
   final Set<ConstantValue> cachedEmittedConstants;
   final CodeBuffer cachedEmittedConstantsBuffer = new CodeBuffer();
   final Map<Element, ClassBuilder> cachedClassBuilders;
   final Set<Element> cachedElements;
 
   bool needsClassSupport = false;
@@ skipping 73 matching lines @@
       : this.compiler = compiler,
         this.namer = namer,
         cachedEmittedConstants = compiler.cacheStrategy.newSet(),
         cachedClassBuilders = compiler.cacheStrategy.newMap(),
         cachedElements = compiler.cacheStrategy.newSet() {
     constantEmitter =
         new ConstantEmitter(compiler, namer, makeConstantListTemplate);
     containerBuilder.emitter = this;
     classEmitter.emitter = this;
     nsmEmitter.emitter = this;
-    typeTestEmitter.emitter = this;
     interceptorEmitter.emitter = this;
     metadataEmitter.emitter = this;
   }
 
   List<jsAst.Node> cspPrecompiledFunctionFor(OutputUnit outputUnit) {
     return _cspPrecompiledFunctions.putIfAbsent(
         outputUnit,
         () => new List<jsAst.Node>());
   }
 
@@ skipping 1668 matching lines @@
     nativeEmitter.generateNativeClasses(program.nativeClasses,
                                         additionalProperties);
 
     nativeEmitter.finishGenerateNativeClasses();
     nativeEmitter.assembleCode(nativeBuffer);
 
     return nativeBuffer;
   }
 
   int emitProgram(ProgramBuilder programBuilder) {
-    Program program = programBuilder.buildProgram();
+    Program program = programBuilder.buildProgram(
+        storeFunctionTypesInMetadata: true);
 
     // Shorten the code by using [namer.currentIsolate] as temporary.
     isolateProperties = namer.currentIsolate;
 
     // Emit deferred units first, so we have their hashes.
     // Map from OutputUnit to a hash of its content. The hash uniquely
     // identifies the code of the output-unit. It does not include
     // boilerplate JS code, like the sourcemap directives or the hash
     // itself.
     Map<OutputUnit, String> deferredLoadHashes =
@@ skipping 292 matching lines @@
     for (Element element in compiler.enqueuer.codegen.newlyEnqueuedElements) {
       if (element.isInstanceMember) {
         cachedClassBuilders.remove(element.enclosingClass);
 
         nativeEmitter.cachedBuilders.remove(element.enclosingClass);
 
       }
     }
   }
 }