Add generic-methods 'golden' tests for 'reify' transformation

pkg/kernel/testcases/reify/generic_methods_recursive_bound_test.dart

+// Copyright (c) 2017, 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.
+
+// Test that F-bounded quantification works for generic methods.
+
+library generic_methods_recursive_bound_test;
+
+import "test_base.dart";
+
+abstract class I<T> {
+  bool fun(T x);
+}
+
+int foo<T extends I<T>>(List<T> a) {
+  if (a.length > 1) {
+    a[0].fun(a[1]);
+  }
+  return a.length;
+}
+
+class C implements I<C> {
+  bool fun(C c) => true;
+}
+
+main() {
+  expectTrue(foo<C>(<C>[new C(), new C()]) == 2);
+}