fix build failure, rename refactor take 2

compiler/java/com/google/dart/compiler/testing/TestCompilerConfiguration.java

 // 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.
 
 package com.google.dart.compiler.testing;
 
 import com.google.dart.compiler.CommandLineOptions.CompilerOptions;
 import com.google.dart.compiler.CompilerConfiguration;
 import com.google.dart.compiler.DartCompilationPhase;
 import com.google.dart.compiler.LibrarySource;
@@ skipping 75 matching lines @@
   public CompilerOptions getCompilerOptions() {
     return compilerOptions;
   }
 
   @Override
   public ErrorFormat printErrorFormat() {
     return ErrorFormat.MACHINE;
   }
 
   @Override
-  public PackageLibraryManager getSystemLibraryManager() {
+  public PackageLibraryManager getPackageLibraryManager() {
     return systemLibraryManager;
   }
 }