Add mirrors tests

test/codegen/lib/mirrors/is_odd_test.dart

Index: test/codegen/lib/mirrors/is_odd_test.dart
diff --git a/test/codegen/language/interceptor7_test.dart b/test/codegen/lib/mirrors/is_odd_test.dart
similarity index 50%
copy from test/codegen/language/interceptor7_test.dart
copy to test/codegen/lib/mirrors/is_odd_test.dart
index 965ddfc800c1b1fa7971bd918391b1e806c00cf3..0dc1655c8244dc34f95b505a235174b0fd403dcb 100644
--- a/test/codegen/language/interceptor7_test.dart
+++ b/test/codegen/lib/mirrors/is_odd_test.dart
@@ -2,15 +2,15 @@
 // 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.
 
-// Test that dart2js uses the right interceptor when call a method on
-// something that has type number.
+/// Test that otherwise unused intercepted methods are reified correctly.  This
+/// was a bug in dart2js.
+library test.is_odd_test;
 
-import 'package:expect/expect.dart';
+import 'dart:mirrors';
 
-var array = [];
+import 'package:expect/expect.dart';
 
 main() {
-  array.add(false);
-  var x = array[0] ? 1.5 : 2;
-  Expect.isTrue(x.isEven);
+  Expect.isTrue(reflect(1).getField(#isOdd).reflectee);
+  Expect.isFalse(reflect(2).getField(#isOdd).reflectee);
 }