Added runtime type checking to the elements of list and map literals in dartc

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

 // Copyright (c) 2011, 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.CompilerConfiguration;
 import com.google.dart.compiler.DartCompilationError;
 import com.google.dart.compiler.DartCompilerContext;
 import com.google.dart.compiler.DartCompilerListener;
 import com.google.dart.compiler.DartSource;
+import com.google.dart.compiler.DefaultCompilerConfiguration;
 import com.google.dart.compiler.ErrorCode;
 import com.google.dart.compiler.ErrorSeverity;
 import com.google.dart.compiler.LibrarySource;
 import com.google.dart.compiler.Source;
 import com.google.dart.compiler.SubSystem;
 import com.google.dart.compiler.ast.DartUnit;
 import com.google.dart.compiler.ast.LibraryUnit;
 import com.google.dart.compiler.metrics.CompilerMetrics;
 
 import java.io.IOException;
 import java.io.Reader;
 import java.io.Writer;
 import java.net.URI;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.EnumSet;
 import java.util.List;
 import java.util.Set;
 
 /**
  * Common context for test cases.
  */
 public class TestCompilerContext implements DartCompilerListener, DartCompilerContext {
 
   private final Set<EventKind> ignoredEvents;
   final List<ErrorCode> errors;
   private int typeErrorCount;
   private int warningCount;
   private int errorCount;
+  private final CompilerConfiguration compilerConfiguration = new DefaultCompilerConfiguration();
 
   /**
    * @param ignored list of events that will be ignored. All other events cause an AssertionError.
    */
   public TestCompilerContext(EventKind... ignored) {
     EnumSet<EventKind> set = EnumSet.noneOf(EventKind.class);
     for (EventKind kind : ignored) {
       set.add(kind);
     }
     this.ignoredEvents = Collections.unmodifiableSet(set);
@@ skipping 78 matching lines @@
     return errors;
   }
 
   @Override
   public boolean shouldWarnOnNoSuchType() {
     return false;
   }
 
   @Override
   public CompilerConfiguration getCompilerConfiguration() {
-    return null;
+    return compilerConfiguration;
   }
 
   public enum EventKind {
     ERROR,
     TYPE_ERROR,
     WARNING;
   }
 
   @Override
   public LibrarySource getSystemLibraryFor(String importSpec) {
     return null;
   }
 
   @Override
   public void unitAboutToCompile(DartSource source, boolean diet) {
   }
 
   @Override
   public void unitCompiled(DartUnit unit) {
   }
 }