new testcase that crashes the C++ frontend, found by John

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8655 91177308-0d34-0410-b5e6-96231b3b80d8

test/C++Frontend/2003-09-22-CompositeExprValue.cpp

@@ -0,0 +1,9 @@
+struct duration {
+ duration operator/=(int c) {
+	return *this;
+  }
+};
+
+void a000090() {
+	duration() /= 1;
+}