New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8218 91177308-0d34-0410-b5e6-96231b3b80d8

test/C++Frontend/2003-08-29-ArgPassingBug.cpp.tr

@@ -0,0 +1,13 @@
+
+// RUN: llvmgcc -xc++ -c -o /dev/null %s 2>&1 | not grep WARNING
+
+struct iterator {
+  iterator();
+  iterator(const iterator &I);
+};
+
+iterator foo(const iterator &I) { return I; }
+
+void test() {
+  foo(iterator());
+}