Remove dart2jslib.dart

tests/compiler/dart2js/deferred_inline_restrictions_test.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.
 
 // Test that we do not accidentially leak code from deferred libraries but do
 // allow inlining of empty functions and from main.
 
 import 'package:async_helper/async_helper.dart';
-import 'package:compiler/src/dart2jslib.dart';
+import 'package:compiler/src/compiler.dart';
 import 'package:expect/expect.dart';
 import 'memory_compiler.dart';
 
 void main() {
   asyncTest(() async {
     OutputCollector collector = new OutputCollector();
     CompilationResult result = await runCompiler(
       memorySourceFiles: MEMORY_SOURCE_FILES,
       outputProvider: collector);
     Compiler compiler = result.compiler;
@@ skipping 75 matching lines @@
 }
 """, "lib2.dart": """
 import "lib3.dart" as lib3;
 
 test() {
   print(lib3.sameContextInline("should be inlined"));
 }
 """, "lib3.dart": """
 sameContextInline(x) => "inline same context" + x;
 """};