New testcase identified by Brian Gaeke. Gotta love GCC extensions. :(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6310 91177308-0d34-0410-b5e6-96231b3b80d8

test/C++Frontend/2003-05-23-TransparentUnion.c

@@ -0,0 +1,20 @@
+#include <stdio.h>
+
+typedef union {
+  float *__fptr;
+  int *__iptr;
+} UNION __attribute__ ((__transparent_union__));
+
+int try(UNION U) {
+  return 1;
+}
+int test() {
+  int I;
+  float F;
+  return try(&I) | try(&F);
+}
+
+int main() {
+  if (test()) printf("ok");
+  return 0;
+}