dart2js: Split TypeTestEmitter into a registry and an emitter.

pkg/dart2js_incremental/lib/caching_compiler.dart

 // Copyright (c) 2013, 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_incremental;
 
 /// Do not call this method directly. It will be made private.
 // TODO(ahe): Make this method private.
 Future<Compiler> reuseCompiler(
     {DiagnosticHandler diagnosticHandler,
@@ skipping 86 matching lines @@
     backend.emitter.oldEmitter.cachedElements.add(null);
 
     compiler.enqueuer.codegen.newlyEnqueuedElements.clear();
 
     backend.emitter.oldEmitter.containerBuilder
         ..staticGetters.clear();
 
     backend.emitter.oldEmitter.nsmEmitter
         ..trivialNsmHandlers.clear();
 
-    backend.emitter.typeTestEmitter
+    backend.emitter.typeTestRegistry
         ..checkedClasses = null
         ..checkedFunctionTypes = null
         ..rtiNeededClasses.clear()
         ..cachedClassesUsingTypeVariableTests = null;
 
     backend.emitter.oldEmitter.interceptorEmitter
         ..interceptorInvocationNames.clear();
 
     backend.emitter.oldEmitter.metadataEmitter
         ..globalMetadata.clear()
@@ skipping 33 matching lines @@
             library.isPlatformLibrary ||
             (packagesAreImmutable && library.isPackageLibrary));
       };
     }
     return compiler.libraryLoader.resetAsync(reuseLibrary).then((_) {
       oldTag.makeCurrent();
       return compiler;
     });
   }
 }