Fix a URI related problem on windows.

editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/internal/compiler/TestCompilerListener.java

 /*
  * Copyright (c) 2011, the Dart project authors.
  * 
  * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
  * in compliance with the License. You may obtain a copy of the License at
  * 
  * http://www.eclipse.org/legal/epl-v10.html
  * 
  * Unless required by applicable law or agreed to in writing, software distributed under the License
  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
  * or implied. See the License for the specific language governing permissions and limitations under
  * the License.
  */
 package com.google.dart.tools.core.internal.compiler;
 
 import com.google.dart.compiler.DartCompilationError;
 import com.google.dart.compiler.DartCompilerListener;
-import com.google.dart.compiler.Source;
 import com.google.dart.compiler.ast.DartUnit;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 
 /**
  * A listener for validating that zero or more specific errors occurred during a compilation.
  */
 public class TestCompilerListener extends DartCompilerListener {
   private String[] messages;
@@ skipping 45 matching lines @@
 
   @Override
   public void typeError(DartCompilationError event) {
     compilationError(event);
   }
 
   @Override
   public void unitCompiled(DartUnit unit) {
   }
 }