Remove Compiler.assembledCode.

tests/compiler/dart2js/mirror_helper_rename_test.dart

Index: tests/compiler/dart2js/mirror_helper_rename_test.dart
diff --git a/tests/compiler/dart2js/mirror_helper_rename_test.dart b/tests/compiler/dart2js/mirror_helper_rename_test.dart
index 35495513fccc2b60bd935c3ec48453caddbb94bf..2428dfef7843976eca3becef7d0acc42263c083f 100644
--- a/tests/compiler/dart2js/mirror_helper_rename_test.dart
+++ b/tests/compiler/dart2js/mirror_helper_rename_test.dart
@@ -5,7 +5,7 @@
 import "package:expect/expect.dart";
 import 'dart:async';
 import "package:async_helper/async_helper.dart";
-import 'memory_compiler.dart' show compilerFor;
+import 'memory_compiler.dart' show compilerFor, OutputCollector;
 import 'package:compiler/src/apiimpl.dart' show
     Compiler;
 import 'package:compiler/src/tree/tree.dart' show
@@ -20,12 +20,15 @@ main() {
   testWithoutMirrorHelperLibrary(minify: false);
 }
 
-Future<Compiler> runCompiler({useMirrorHelperLibrary: false, minify: false}) {
+Future<Compiler> runCompiler({OutputCollector outputCollector,
+                              bool useMirrorHelperLibrary: false,
+                              bool minify: false}) {
   List<String> options = ['--output-type=dart'];
   if (minify) {
     options.add('--minify');
   }
-  Compiler compiler = compilerFor(MEMORY_SOURCE_FILES, options: options);
+  Compiler compiler = compilerFor(
+      MEMORY_SOURCE_FILES, outputProvider: outputCollector, options: options);
   DartBackend backend = compiler.backend;
   backend.useMirrorHelperLibrary = useMirrorHelperLibrary;
   return
@@ -33,8 +36,12 @@ Future<Compiler> runCompiler({useMirrorHelperLibrary: false, minify: false}) {
 }
 
 void testWithMirrorHelperLibrary({bool minify}) {
-  asyncTest(() => runCompiler(useMirrorHelperLibrary: true, minify: minify).
-      then((Compiler compiler) {
+  OutputCollector outputCollector = new OutputCollector();
+  asyncTest(() =>
+    runCompiler(outputCollector: outputCollector,
+                useMirrorHelperLibrary: true,
+                minify: minify)
+      .then((Compiler compiler) {
     DartBackend backend = compiler.backend;
     MirrorRenamerImpl mirrorRenamer = backend.mirrorRenamer;
     Map<Node, String> renames = backend.placeholderRenamer.renames;
@@ -55,7 +62,7 @@ void testWithMirrorHelperLibrary({bool minify}) {
       }
     }
 
-    String output = compiler.assembledCode;
+    String output = outputCollector.getOutput('', 'dart');
     String getNameMatch = MirrorRenamerImpl.MIRROR_HELPER_GET_NAME_FUNCTION;
     Iterable i = getNameMatch.allMatches(output);
     print(output);