Fixing whitespace problems

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@111750 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/__tree b/include/__tree
index 18363dc..7def154 100644
--- a/include/__tree
+++ b/include/__tree
@@ -343,7 +343,7 @@
     //    but copy __z's color.  This does not impact __x or __w.
     if (__y != __z)
     {
-        // __z->__left_ != nulptr but __z->__right_ might == __x == nullptr 
+        // __z->__left_ != nulptr but __z->__right_ might == __x == nullptr
         __y->__parent_ = __z->__parent_;
         if (__tree_is_left_child(__z))
             __y->__parent_->__left_ = __y;
@@ -413,8 +413,8 @@
                         }
                         // reset sibling, and it still can't be null
                         __w = __tree_is_left_child(__x) ?
-                                    __x->__parent_->__right_ : 
-                                    __x->__parent_->__left_; 
+                                    __x->__parent_->__right_ :
+                                    __x->__parent_->__left_;
                         // continue;
                     }
                     else  // __w has a red child
@@ -465,8 +465,8 @@
                         }
                         // reset sibling, and it still can't be null
                         __w = __tree_is_left_child(__x) ?
-                                    __x->__parent_->__right_ : 
-                                    __x->__parent_->__left_; 
+                                    __x->__parent_->__right_ :
+                                    __x->__parent_->__left_;
                         // continue;
                     }
                     else  // __w has a red child
@@ -496,7 +496,6 @@
 
 template <class> class __map_node_destructor;
 
-
 template <class _Allocator>
 class __tree_node_destructor
 {
@@ -594,10 +593,10 @@
     template <class ..._Args>
         explicit __tree_node(_Args&& ...__args)
             : __value_(_STD::forward<_Args>(__args)...) {}
-#else
+#else  // _LIBCPP_MOVE
     explicit __tree_node(const value_type& __v)
             : __value_(__v) {}
-#endif
+#endif  // _LIBCPP_MOVE
 };
 
 template <class> class __map_iterator;
@@ -832,7 +831,7 @@
     __tree(__tree&& __t);
     __tree(__tree&& __t, const allocator_type& __a);
     __tree& operator=(__tree&& __t);
-#endif
+#endif  // _LIBCPP_MOVE
 
     ~__tree();
 
@@ -870,13 +869,13 @@
         iterator __insert_multi(_V&& __v);
     template <class _V>
         iterator __insert_multi(const_iterator __p, _V&& __v);
-#else
+#else  // _LIBCPP_MOVE
 
     pair<iterator, bool> __insert_unique(const value_type& __v);
     iterator __insert_unique(const_iterator __p, const value_type& __v);
     iterator __insert_multi(const value_type& __v);
     iterator __insert_multi(const_iterator __p, const value_type& __v);
-#endif
+#endif  // _LIBCPP_MOVE
 
     pair<iterator, bool> __node_insert_unique(__node_pointer __nd);
     iterator             __node_insert_unique(const_iterator __p,
@@ -971,7 +970,7 @@
 #ifdef _LIBCPP_MOVE
     template <class ..._Args>
         __node_holder __construct_node(_Args&& ...__args);
-#else
+#else  // _LIBCPP_MOVE
         __node_holder __construct_node(const value_type& __v);
 #endif
 
@@ -1105,7 +1104,7 @@
 #ifndef _LIBCPP_NO_EXCEPTIONS
         try
         {
-#endif
+#endif  // _LIBCPP_NO_EXCEPTIONS
             for (; __cache != nullptr && __first != __last; ++__first)
             {
                 __cache->__value_ = *__first;
@@ -1122,7 +1121,7 @@
             destroy(__cache);
             throw;
         }
-#endif
+#endif  // _LIBCPP_NO_EXCEPTIONS
         if (__cache != nullptr)
         {
             while (__cache->__parent_ != nullptr)
@@ -1145,7 +1144,7 @@
 #ifndef _LIBCPP_NO_EXCEPTIONS
         try
         {
-#endif
+#endif  // _LIBCPP_NO_EXCEPTIONS
             for (; __cache != nullptr && __first != __last; ++__first)
             {
                 __cache->__value_ = *__first;
@@ -1162,7 +1161,7 @@
             destroy(__cache);
             throw;
         }
-#endif
+#endif  // _LIBCPP_NO_EXCEPTIONS
         if (__cache != nullptr)
         {
             while (__cache->__parent_ != nullptr)
@@ -1264,7 +1263,7 @@
 #ifndef _LIBCPP_NO_EXCEPTIONS
             try
             {
-#endif
+#endif  // _LIBCPP_NO_EXCEPTIONS
                 while (__cache != nullptr && __t.size() != 0)
                 {
                     __cache->__value_ = _STD::move(__t.remove(__t.begin())->__value_);
@@ -1281,7 +1280,7 @@
                 destroy(__cache);
                 throw;
             }
-#endif
+#endif  // _LIBCPP_NO_EXCEPTIONS
             if (__cache != nullptr)
             {
                 while (__cache->__parent_ != nullptr)
@@ -1303,7 +1302,7 @@
     return *this;
 }
 
-#endif
+#endif  // _LIBCPP_MOVE
 
 template <class _Tp, class _Compare, class _Allocator>
 __tree<_Tp, _Compare, _Allocator>::~__tree()
@@ -1727,7 +1726,7 @@
     return iterator(__h.release());
 }
 
-#else
+#else  // _LIBCPP_MOVE
 
 template <class _Tp, class _Compare, class _Allocator>
 typename __tree<_Tp, _Compare, _Allocator>::__node_holder
@@ -1796,7 +1795,7 @@
     return iterator(__h.release());
 }
 
-#endif
+#endif  // _LIBCPP_MOVE
 
 template <class _Tp, class _Compare, class _Allocator>
 pair<typename __tree<_Tp, _Compare, _Allocator>::iterator, bool>