Add test for PRr11676.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147363 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenCXX/pr11676.cpp b/test/CodeGenCXX/pr11676.cpp
new file mode 100644
index 0000000..78e7a5f
--- /dev/null
+++ b/test/CodeGenCXX/pr11676.cpp
@@ -0,0 +1,8 @@
+// RUN: %clang_cc1 %s -std=c++11 -emit-llvm-only
+// CHECK that we don't crash.
+
+union _XEvent {
+};
+void ProcessEvent() {
+  _XEvent pluginEvent = _XEvent();
+}