Assert that the type of the cast is equal to the _unqualified_ type of the subexpression. Fixes a problem spotted by Nuno Lopes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@46158 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/struct.c b/test/CodeGen/struct.c
index 8f9ecd6..be5917a 100644
--- a/test/CodeGen/struct.c
+++ b/test/CodeGen/struct.c
@@ -127,3 +127,12 @@
     a1 = a2;
     a2 = a1;
 }
+
+/* Implicit casts (due to const) */
+void f12()
+{
+	struct _a a1;
+	const struct _a a2;
+	
+	a1 = a2;
+}
\ No newline at end of file