Rename uses of _ and __ because these are getting stepped on by macros from other system code.
llvm-svn: 167038
diff --git a/libcxx/include/iterator b/libcxx/include/iterator
index 5747504..bcbf3ae 100644
--- a/libcxx/include/iterator
+++ b/libcxx/include/iterator
@@ -337,7 +337,7 @@
struct __has_iterator_category
{
private:
- struct __two {char _; char __;};
+ struct __two {char __lx; char __lxx;};
template <class _Up> static __two __test(...);
template <class _Up> static char __test(typename _Up::iterator_category* = 0);
public: