New test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35868 91177308-0d34-0410-b5e6-96231b3b80d8

test/C++Frontend/2007-04-10-PackedUnion.cpp

@@ -0,0 +1,41 @@
+// RUN: %llvmgxx -S %s -o /dev/null
+extern "C" {
+
+#pragma pack(push, 2)
+  typedef struct ABC* abc;
+
+  struct ABCS {
+    float red;
+    float green;
+    float blue;
+    float alpha;
+  };
+
+  typedef void (*XYZ)();
+#pragma pack(pop)
+}
+
+
+union ABCU {
+  ABCS color;
+  XYZ bg;
+};
+
+struct AData {
+  ABCU data;
+};
+
+class L {
+ public:
+  L() {}
+  L(const L& other);
+
+ private:
+  AData fdata;
+};
+
+
+L::L(const L& other)
+{
+  fdata = other.fdata;
+}