new testcase for PR602

llvm-svn: 22495

llvm/test/Regression/C++Frontend/2005-07-21-VirtualBaseAccess.cpp

+// RUN: %llvmgxx -xc++ %s -c -o - | llvm-dis | not grep cast
+
+void foo(int*);
+
+struct FOO {
+  int X;
+};
+
+struct BAR : virtual FOO { BAR(); };
+
+int testfn() {
+  BAR B;
+  foo(&B.X);
+}