[PATCH] [libc++] Fix std::begin() and std::end() for array type.

[Logan Chien]

The std::begin() and std::end() for array type should not be
guarded with _LIBCXX_HAS_NO_TRAILING_RETURN.

This commit will fix the libc++ compilation for g++ 4.6.

http://llvm-reviews.chandlerc.com/D2386

Files:
  include/iterator

Index: include/iterator
===================================================================
--- include/iterator
+++ include/iterator
@@ -1385,8 +1385,6 @@
     return __x;
 }
 
-#if !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_TRAILING_RETURN)
-
 template <class _Tp, size_t _Np>
 inline _LIBCPP_INLINE_VISIBILITY
 _Tp*
@@ -1403,6 +1401,8 @@
     return __array + _Np;
 }
 
+#if !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_TRAILING_RETURN)
+
 template <class _Cp>
 inline _LIBCPP_INLINE_VISIBILITY
 auto
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