Revert "Remove Compiler.assembledCode."

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 1635 matching lines @@
       outputSourceMap(assembledCode, mainBuffer, '',
           compiler.sourceMapUri, compiler.outputUri);
       mainBuffer.write(
           generateSourceMapTag(compiler.sourceMapUri, compiler.outputUri));
       assembledCode = mainBuffer.getText();
     }
 
     compiler.outputProvider('', 'js')
         ..add(assembledCode)
         ..close();
+    compiler.assembledCode = assembledCode;
   }
 
   /// Used by incremental compilation to patch up the prototype of
   /// [oldConstructor] for use as prototype of [newConstructor].
   jsAst.Fun buildSchemaChangeFunction() {
     return js('''
 function(newConstructor, oldConstructor, superclass) {
   // Invariant: newConstructor.prototype has no interesting properties besides
   // generated accessors. These are copied to oldPrototype which will be
   // updated by other incremental changes.
@@ skipping 158 matching lines @@
 
     nativeEmitter.generateNativeClasses(nativeClasses, mainBuffer,
         additionalProperties);
 
     nativeEmitter.finishGenerateNativeClasses();
     nativeEmitter.assembleCode(nativeBuffer);
 
     return nativeBuffer;
   }
 
-  int emitProgram(Program program) {
+  void emitProgram(Program program) {
     // 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 = emitDeferredOutputUnits();
     CodeBuffer nativeBuffer = buildNativesBuffer();
     emitMainOutputUnit(deferredLoadHashes, nativeBuffer);
 
     if (backend.requiresPreamble &&
         !backend.htmlLibraryIsLoaded) {
       compiler.reportHint(NO_LOCATION_SPANNABLE, MessageKind.PREAMBLE);
     }
-
-    // Return the total program size.
-    return outputBuffers.values.fold(0, (a, b) => a + b.length);
   }
 
   String generateSourceMapTag(Uri sourceMapUri, Uri fileUri) {
     if (sourceMapUri != null && fileUri != null) {
       String sourceMapFileName = relativize(fileUri, sourceMapUri, false);
       return '''
 
 //# sourceMappingURL=$sourceMapFileName
 ''';
     }
@@ skipping 232 matching lines @@
     for (Element element in compiler.enqueuer.codegen.newlyEnqueuedElements) {
       if (element.isInstanceMember) {
         cachedClassBuilders.remove(element.enclosingClass);
 
         nativeEmitter.cachedBuilders.remove(element.enclosingClass);
 
       }
     }
   }
 }