Improved check for trivial templates.

tools/clang/plugins/tests/trivial_ctor.h

Index: tools/clang/plugins/tests/trivial_ctor.h
diff --git a/tools/clang/plugins/tests/trivial_ctor.h b/tools/clang/plugins/tests/trivial_ctor.h
new file mode 100644
index 0000000000000000000000000000000000000000..2fa3003da760e6f0b327d75708fdc6a086b35ae2
--- /dev/null
+++ b/tools/clang/plugins/tests/trivial_ctor.h
@@ -0,0 +1,28 @@
+// Copyright (c) 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef TRIVIAL_CTOR_H_
+#define TRIVIAL_CTOR_H_
+
+// Mocked for testing:
+namespace std {
+
+template<typename T>
+struct atomic {
+  T i;
+};
+
+typedef atomic<int> atomic_int;
+
+}  // namespace std
+
+struct MySpinLock {
+  MySpinLock();
+  ~MySpinLock();
+  MySpinLock(const MySpinLock&);
+  MySpinLock(MySpinLock&&);
+  std::atomic_int lock_;
+};
+
+#endif  // TRIVIAL_CTOR_H_