Fixed two problems found by Chris Jefferson:  Made operator>> for char consistent with gcc.  Opened an LWG issue on this one.  2) Renamed some private typedefs which are causing boost grief.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@126576 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/__hash_table b/include/__hash_table
index 4be27f6..41dbaa0 100644
--- a/include/__hash_table
+++ b/include/__hash_table
@@ -29,9 +29,9 @@
 struct __hash_node_base
 {
     typedef __hash_node_base __first_node;
-    typedef _NodePtr pointer;
+ //   typedef _NodePtr pointer;
 
-    pointer    __next_;
+    _NodePtr    __next_;
 
     _LIBCPP_INLINE_VISIBILITY __hash_node_base() : __next_(nullptr) {}
 };