fix PR7892, a crash on valid in c++ codegen of __PRETTY_FUNCTION__

llvm-svn: 111330
diff --git a/clang/test/CodeGenCXX/expr.cpp b/clang/test/CodeGenCXX/expr.cpp
index d92cfb4..26bda05 100644
--- a/clang/test/CodeGenCXX/expr.cpp
+++ b/clang/test/CodeGenCXX/expr.cpp
@@ -14,3 +14,7 @@
 // PR5514
 int a;
 void test2() { ++a+=10; }
+
+// PR7892
+int test3(const char*);
+int test3g = test3(__PRETTY_FUNCTION__);