Don't use 'interface' in test files.

editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/internal/model/testsource/TryCatchTest.dart

Index: editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/internal/model/testsource/TryCatchTest.dart
diff --git a/editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/internal/model/testsource/TryCatchTest.dart b/editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/internal/model/testsource/TryCatchTest.dart
deleted file mode 100644
index 4e925c47242caeca2d7182cbf11d902ea9b4ee47..0000000000000000000000000000000000000000
--- a/editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/internal/model/testsource/TryCatchTest.dart
+++ /dev/null
@@ -1,144 +0,0 @@
-// 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.
-
-class MyException {
-  MyException() {}
-}
-
-class MyException1 extends MyException {
-  MyException1() : super() {}
-}
-
-class MyException2 extends MyException {
-  MyException2() : super() {}
-}
-
-class TryCatchTest {
-  static void test1() {
-    var foo = 0;
-    try {
-      throw new MyException1();
-    } catch (MyException2 e) {
-      foo = 1;
-    } catch (MyException1 e) {
-      foo = 2;
-    } catch (MyException e) {
-      foo = 3;
-    }
-    assert(foo == 2);
-  }
-
-  static void test2() {
-    var foo = 0;
-    try {
-      throw new MyException1();
-    } catch (MyException2 e) {
-      foo = 1;
-    } catch (MyException e) {
-      foo = 2;
-    } catch (MyException1 e) {
-      foo = 3;
-    }
-    assert(foo == 2);
-  }
-
-  static void test3() {
-    var foo = 0;
-    try {
-      throw new MyException();
-    } catch (MyException2 e) {
-      foo = 1;
-    } catch (MyException1 e) {
-      foo = 2;
-    } catch (MyException e) {
-      foo = 3;
-    }
-    assert(foo == 3);
-  }
-
-  static void test4() {
-    var foo = 0;
-    try {
-      try {
-        throw new MyException();
-      } catch (MyException2 e) {
-        foo = 1;
-      } catch (MyException1 e) {
-        foo = 2;
-      }
-    } catch (MyException e) {
-      assert(foo == 0);
-      foo = 3;
-    }
-    assert(foo == 3);
-  }
-
-  static void test5() {
-    var foo = 0;
-    try {
-      throw new MyException1();
-    } catch (MyException2 e) {
-      foo = 1;
-    } catch (e) {
-      foo = 2;
-    } catch (MyException1 e) {
-      foo = 3;
-    }
-    assert(foo == 2);
-  }
-
-  static void test6() {
-    var foo = 0;
-    try {
-      throw new MyException();
-    } catch (MyException2 e) {
-      foo = 1;
-    } catch (MyException1 e) {
-      foo = 2;
-    } catch (e) {
-      foo = 3;
-    }
-    assert(foo == 3);
-  }
-
-  static void test7() {
-    var foo = 0;
-    try {
-      try {
-        throw new MyException();
-      } catch (MyException2 e) {
-        foo = 1;
-      } catch (MyException1 e) {
-        foo = 2;
-      }
-    } catch (e) {
-      assert(foo == 0);
-      foo = 3;
-    }
-    assert(foo == 3);
-  }
-
-  static void test8() {
-    var e = 3;
-    var caught = false;
-    try {
-      throw new MyException();
-    } catch (exc) {
-      caught = true;
-    }
-    assert(caught == true);
-    assert(e == 3);
-  }
-
-  static void main(args) {
-    test1();
-    test2();
-    test3();
-    test4();
-    test5();
-    test6();
-    test7();
-    test8();
-  }
-}