New testcase for PR276: llvm-g++ does not mangle method names that match stdlib function names

llvm-svn: 12265
diff --git a/llvm/test/Regression/C++Frontend/2004-03-09-UnmangledBuiltinMethods.cpp.tr b/llvm/test/Regression/C++Frontend/2004-03-09-UnmangledBuiltinMethods.cpp.tr
new file mode 100644
index 0000000..b019e0c
--- /dev/null
+++ b/llvm/test/Regression/C++Frontend/2004-03-09-UnmangledBuiltinMethods.cpp.tr
@@ -0,0 +1,8 @@
+// RUN: %llvmgcc -xc++ -c -o - %s | llvm-dis | grep _ZN11AccessFlags6strlenEv
+
+struct AccessFlags {
+  void strlen();
+};
+
+void AccessFlags::strlen() { }
+