Cleanup _LIBCPP_HAS_NO_<c++11-feature> for std::queue and std::priority_queue.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@300604 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/queue b/include/queue
index 57d420c..feaae89 100644
--- a/include/queue
+++ b/include/queue
@@ -213,29 +213,27 @@
     _LIBCPP_INLINE_VISIBILITY
     queue(const queue& __q) : c(__q.c) {}
 
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    _LIBCPP_INLINE_VISIBILITY
+    queue& operator=(const queue& __q) {c = __q.c; return *this;}
+
+#ifndef _LIBCPP_CXX03_LANG
     _LIBCPP_INLINE_VISIBILITY
     queue(queue&& __q)
         _NOEXCEPT_(is_nothrow_move_constructible<container_type>::value)
         : c(_VSTD::move(__q.c)) {}
-#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
 
     _LIBCPP_INLINE_VISIBILITY
-    queue& operator=(const queue& __q) {c = __q.c; return *this;}
-
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
-    _LIBCPP_INLINE_VISIBILITY
     queue& operator=(queue&& __q)
         _NOEXCEPT_(is_nothrow_move_assignable<container_type>::value)
         {c = _VSTD::move(__q.c); return *this;}
-#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#endif  // _LIBCPP_CXX03_LANG
 
     _LIBCPP_INLINE_VISIBILITY
     explicit queue(const container_type& __c)  : c(__c) {}
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#ifndef _LIBCPP_CXX03_LANG
     _LIBCPP_INLINE_VISIBILITY
     explicit queue(container_type&& __c) : c(_VSTD::move(__c)) {}
-#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#endif  // _LIBCPP_CXX03_LANG
     template <class _Alloc>
         _LIBCPP_INLINE_VISIBILITY
         explicit queue(const _Alloc& __a,
@@ -254,7 +252,7 @@
                        typename enable_if<uses_allocator<container_type,
                                                          _Alloc>::value>::type* = 0)
             : c(__c, __a) {}
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#ifndef _LIBCPP_CXX03_LANG
     template <class _Alloc>
         _LIBCPP_INLINE_VISIBILITY
         queue(container_type&& __c, const _Alloc& __a,
@@ -268,7 +266,7 @@
                                                          _Alloc>::value>::type* = 0)
             : c(_VSTD::move(__q.c), __a) {}
 
-#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#endif  // _LIBCPP_CXX03_LANG
 
     _LIBCPP_INLINE_VISIBILITY
     bool      empty() const {return c.empty();}
@@ -286,10 +284,9 @@
 
     _LIBCPP_INLINE_VISIBILITY
     void push(const value_type& __v) {c.push_back(__v);}
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#ifndef _LIBCPP_CXX03_LANG
     _LIBCPP_INLINE_VISIBILITY
     void push(value_type&& __v)      {c.push_back(_VSTD::move(__v));}
-#ifndef _LIBCPP_HAS_NO_VARIADICS
     template <class... _Args>
         _LIBCPP_INLINE_VISIBILITY
 #if _LIBCPP_STD_VER > 14
@@ -299,8 +296,7 @@
         void     emplace(_Args&&... __args)
             {        c.emplace_back(_VSTD::forward<_Args>(__args)...);}
 #endif
-#endif  // _LIBCPP_HAS_NO_VARIADICS
-#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#endif  // _LIBCPP_CXX03_LANG
     _LIBCPP_INLINE_VISIBILITY
     void pop() {c.pop_front();}
 
@@ -418,32 +414,30 @@
     _LIBCPP_INLINE_VISIBILITY
     priority_queue(const priority_queue& __q) : c(__q.c), comp(__q.comp) {}
 
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    _LIBCPP_INLINE_VISIBILITY
+    priority_queue& operator=(const priority_queue& __q)
+        {c = __q.c; comp = __q.comp; return *this;}
+
+#ifndef _LIBCPP_CXX03_LANG
     _LIBCPP_INLINE_VISIBILITY
     priority_queue(priority_queue&& __q)
         _NOEXCEPT_(is_nothrow_move_constructible<container_type>::value &&
                    is_nothrow_move_constructible<value_compare>::value)
         : c(_VSTD::move(__q.c)), comp(_VSTD::move(__q.comp)) {}
-#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
 
     _LIBCPP_INLINE_VISIBILITY
-    priority_queue& operator=(const priority_queue& __q)
-        {c = __q.c; comp = __q.comp; return *this;}
-
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
-    _LIBCPP_INLINE_VISIBILITY
     priority_queue& operator=(priority_queue&& __q)
         _NOEXCEPT_(is_nothrow_move_assignable<container_type>::value &&
                    is_nothrow_move_assignable<value_compare>::value)
         {c = _VSTD::move(__q.c); comp = _VSTD::move(__q.comp); return *this;}
-#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#endif  // _LIBCPP_CXX03_LANG
 
     _LIBCPP_INLINE_VISIBILITY
     explicit priority_queue(const value_compare& __comp)
         : c(), comp(__comp) {}
     _LIBCPP_INLINE_VISIBILITY
     priority_queue(const value_compare& __comp, const container_type& __c);
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#ifndef _LIBCPP_CXX03_LANG
     _LIBCPP_INLINE_VISIBILITY
     explicit priority_queue(const value_compare& __comp, container_type&& __c);
 #endif
@@ -455,12 +449,12 @@
         _LIBCPP_INLINE_VISIBILITY
         priority_queue(_InputIter __f, _InputIter __l,
                        const value_compare& __comp, const container_type& __c);
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#ifndef _LIBCPP_CXX03_LANG
     template <class _InputIter>
         _LIBCPP_INLINE_VISIBILITY
         priority_queue(_InputIter __f, _InputIter __l,
                        const value_compare& __comp, container_type&& __c);
-#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#endif  // _LIBCPP_CXX03_LANG
     template <class _Alloc>
         _LIBCPP_INLINE_VISIBILITY
         explicit priority_queue(const _Alloc& __a,
@@ -482,7 +476,7 @@
         priority_queue(const priority_queue& __q, const _Alloc& __a,
                        typename enable_if<uses_allocator<container_type,
                                                          _Alloc>::value>::type* = 0);
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#ifndef _LIBCPP_CXX03_LANG
     template <class _Alloc>
         _LIBCPP_INLINE_VISIBILITY
         priority_queue(const value_compare& __comp, container_type&& __c,
@@ -494,7 +488,7 @@
         priority_queue(priority_queue&& __q, const _Alloc& __a,
                        typename enable_if<uses_allocator<container_type,
                                                          _Alloc>::value>::type* = 0);
-#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#endif  // _LIBCPP_CXX03_LANG
 
     _LIBCPP_INLINE_VISIBILITY
     bool            empty() const {return c.empty();}
@@ -505,13 +499,13 @@
 
     _LIBCPP_INLINE_VISIBILITY
     void push(const value_type& __v);
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#ifndef _LIBCPP_CXX03_LANG
     _LIBCPP_INLINE_VISIBILITY
     void push(value_type&& __v);
-#ifndef _LIBCPP_HAS_NO_VARIADICS
-    template <class... _Args> _LIBCPP_INLINE_VISIBILITY void emplace(_Args&&... __args);
-#endif
-#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    template <class... _Args>
+    _LIBCPP_INLINE_VISIBILITY
+    void emplace(_Args&&... __args);
+#endif  // _LIBCPP_CXX03_LANG
     _LIBCPP_INLINE_VISIBILITY
     void pop();
 
@@ -531,7 +525,7 @@
     _VSTD::make_heap(c.begin(), c.end(), comp);
 }
 
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#ifndef _LIBCPP_CXX03_LANG
 
 template <class _Tp, class _Container, class _Compare>
 inline
@@ -543,7 +537,7 @@
     _VSTD::make_heap(c.begin(), c.end(), comp);
 }
 
-#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#endif  // _LIBCPP_CXX03_LANG
 
 template <class _Tp, class _Container, class _Compare>
 template <class _InputIter>
@@ -569,7 +563,7 @@
     _VSTD::make_heap(c.begin(), c.end(), comp);
 }
 
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#ifndef _LIBCPP_CXX03_LANG
 
 template <class _Tp, class _Container, class _Compare>
 template <class _InputIter>
@@ -584,7 +578,7 @@
     _VSTD::make_heap(c.begin(), c.end(), comp);
 }
 
-#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#endif  // _LIBCPP_CXX03_LANG
 
 template <class _Tp, class _Container, class _Compare>
 template <class _Alloc>
@@ -635,7 +629,7 @@
     _VSTD::make_heap(c.begin(), c.end(), comp);
 }
 
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#ifndef _LIBCPP_CXX03_LANG
 
 template <class _Tp, class _Container, class _Compare>
 template <class _Alloc>
@@ -664,7 +658,7 @@
     _VSTD::make_heap(c.begin(), c.end(), comp);
 }
 
-#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#endif  // _LIBCPP_CXX03_LANG
 
 template <class _Tp, class _Container, class _Compare>
 inline
@@ -675,7 +669,7 @@
     _VSTD::push_heap(c.begin(), c.end(), comp);
 }
 
-#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#ifndef _LIBCPP_CXX03_LANG
 
 template <class _Tp, class _Container, class _Compare>
 inline
@@ -686,8 +680,6 @@
     _VSTD::push_heap(c.begin(), c.end(), comp);
 }
 
-#ifndef _LIBCPP_HAS_NO_VARIADICS
-
 template <class _Tp, class _Container, class _Compare>
 template <class... _Args>
 inline
@@ -698,8 +690,7 @@
     _VSTD::push_heap(c.begin(), c.end(), comp);
 }
 
-#endif  // _LIBCPP_HAS_NO_VARIADICS
-#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#endif  // _LIBCPP_CXX03_LANG
 
 template <class _Tp, class _Container, class _Compare>
 inline