...and then there was one. Only one copy of 'iterators.h' in the test tree for libc++

llvm-svn: 171479
diff --git a/libcxx/test/algorithms/alg.modifying.operations/alg.copy/copy.pass.cpp b/libcxx/test/algorithms/alg.modifying.operations/alg.copy/copy.pass.cpp
index c9339cf..135293d 100644
--- a/libcxx/test/algorithms/alg.modifying.operations/alg.copy/copy.pass.cpp
+++ b/libcxx/test/algorithms/alg.modifying.operations/alg.copy/copy.pass.cpp
@@ -16,7 +16,7 @@
 #include <algorithm>
 #include <cassert>
 
-#include "../../iterators.h"
+#include "../../../iterators.h"
 
 template <class InIter, class OutIter>
 void