Add mirrors tests

test/codegen/lib/mirrors/typedef_in_signature_test.dart

Index: test/codegen/lib/mirrors/typedef_in_signature_test.dart
diff --git a/test/codegen/lib/mirrors/typedef_in_signature_test.dart b/test/codegen/lib/mirrors/typedef_in_signature_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..baa06257a8397709c1a0ff1cf0fb4840ffc54c94
--- /dev/null
+++ b/test/codegen/lib/mirrors/typedef_in_signature_test.dart
@@ -0,0 +1,33 @@
+// Copyright (c) 2014, 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.
+
+library test.typedef_in_signature_test;
+
+@MirrorsUsed(targets: 'test.typedef_in_signature_test')
+import 'dart:mirrors';
+
+import "package:expect/expect.dart";
+
+typedef int foo();
+typedef String foo2();
+typedef foo foo3(foo2 x);
+
+foo2 bar(foo x) {
+  return null;
+}
+
+foo3 gee(int x, foo3 tt) => null;
+
+main() {
+  var lm = currentMirrorSystem().findLibrary(#test.typedef_in_signature_test);
+  var ftm = lm.declarations[#bar];
+  Expect.equals(reflectType(foo2), ftm.returnType);
+  Expect.equals(reflectType(foo), ftm.parameters[0].type);
+  ftm = lm.declarations[#gee];
+  Expect.equals(reflectType(int), ftm.parameters[0].type);
+  Expect.equals(reflectType(foo3), ftm.returnType);
+  ftm = ftm.returnType.referent;
+  Expect.equals(reflectType(foo), ftm.returnType);
+  Expect.equals(reflectType(foo2), ftm.parameters[0].type);
+}