Remove Compiler.assembledCode.

tests/compiler/dart2js/dump_info_test.dart

 // Copyright (c) 2012, 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.
 // Test that parameters keep their names in the output.
 
 import "package:expect/expect.dart";
 import "package:async_helper/async_helper.dart";
 import 'memory_compiler.dart';
 import 'package:compiler/src/dump_info.dart';
 import 'dart:convert';
@@ skipping 85 matching lines @@
 """;
 
 typedef void JsonTaking(Map<String, dynamic> json);
 
 void jsonTest(String program, JsonTaking testFn) {
   var compiler = compilerFor({'main.dart': program}, options: ['--dump-info']);
   asyncTest(() => compiler.runCompiler(Uri.parse('memory:main.dart')).then(
     (_) {
       Expect.isFalse(compiler.compilationFailed);
       var dumpTask = compiler.dumpInfoTask;
-      dumpTask.collectInfo();
+      dumpTask.collectInfo(0);
       var info = dumpTask.infoCollector;
 
       StringBuffer sb = new StringBuffer();
       dumpTask.dumpInfoJson(sb);
       String json = sb.toString();
       Map<String, dynamic> map = JSON.decode(json);
 
       testFn(map);
     }));
 }
@@ skipping 58 matching lines @@
     Expect.isTrue(main_ != null);
     Expect.isTrue(fn1 != null);
     Expect.isTrue(fn2 != null);
     Expect.isTrue(deps.containsKey(main_['id']));
     Expect.isTrue(deps.containsKey(fn1['id']));
     Expect.isTrue(deps.containsKey(fn2['id']));
     Expect.isTrue(deps[main_['id']].any((dep) => dep['id'] == fn1['id']));
     Expect.isTrue(deps[fn1['id']].any((dep) => dep['id'] == fn2['id']));
   });
 }