Check for using 'this' and 'super'. Tests. Issue 662.

compiler/javatests/com/google/dart/compiler/resolver/MockLibraryUnit.java

Index: compiler/javatests/com/google/dart/compiler/resolver/MockLibraryUnit.java
diff --git a/compiler/javatests/com/google/dart/compiler/resolver/MockLibraryUnit.java b/compiler/javatests/com/google/dart/compiler/resolver/MockLibraryUnit.java
new file mode 100644
index 0000000000000000000000000000000000000000..37bec076cb02980054b842e9dd30376b0c6c567b
--- /dev/null
+++ b/compiler/javatests/com/google/dart/compiler/resolver/MockLibraryUnit.java
@@ -0,0 +1,33 @@
+// 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.resolver;
+
+import com.google.dart.compiler.LibrarySource;
+import com.google.dart.compiler.MockLibrarySource;
+import com.google.dart.compiler.ast.DartUnit;
+import com.google.dart.compiler.ast.LibraryUnit;
+
+/**
+ * Testing support for {@link LibraryUnit}.
+ */
+public final class MockLibraryUnit {
+  /**
+   * @return the mock {@link LibraryUnit}.
+   */
+  public static LibraryUnit create() {
+    LibrarySource librarySource = new MockLibrarySource();
+    return new LibraryUnit(librarySource);
+  }
+
+  /**
+   * Creates the mock {@link LibraryUnit} and sets it for given {@link DartUnit}.
+   * 
+   * @return the mock {@link LibraryUnit}.
+   */
+  public static LibraryUnit create(DartUnit unit) {
+    LibraryUnit libraryUnit = create();
+    unit.setLibrary(libraryUnit);
+    return libraryUnit;
+  }
+}