Revert of Treat std::atomic_int as a trivial class member when checking for non-trivial classes.

tools/clang/plugins/tests/virtual_bodies.h

Index: tools/clang/plugins/tests/virtual_bodies.h
diff --git a/tools/clang/plugins/tests/virtual_bodies.h b/tools/clang/plugins/tests/virtual_bodies.h
index ad9ba3484c9778bfffcd0d1b01b36d011990422e..fb971c3f1e89dd0d8f7d8cced841dff0b7f4e288 100644
--- a/tools/clang/plugins/tests/virtual_bodies.h
+++ b/tools/clang/plugins/tests/virtual_bodies.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef VIRTUAL_BODIES_H_
-#define VIRTUAL_BODIES_H_
+#ifndef VIRTUAL_METHODS_H_
+#define VIRTUAL_METHODS_H_
 
 // Note: This is not actual windows.h but the stub file in system/windows.h
 #include <windows.h>
@@ -47,4 +47,4 @@
   testing::TestStruct tester_;
 };
 
-#endif  // VIRTUAL_BODIES_H_
+#endif  // VIRTUAL_METHODS_H_