[v3] Fix two typos in

[Paolo Carlini]

Hi,

tested x86_64-linux, committed.

Thanks,
Paolo.

////////////////

2011-06-09  Paolo Carlini  <paolo.carl...@oracle.com>

        * include/std/type_traits (__is_copy_assignable_impl,
        __is_nt_copy_assignable_impl): Fix typos.

Index: include/std/type_traits
===================================================================
--- include/std/type_traits     (revision 174838)
+++ include/std/type_traits     (working copy)
@@ -1029,7 +1029,7 @@
 
   template<typename _Tp>
     struct __is_copy_assignable_impl<_Tp, false>
-    : public is_assignable<_Tp&, const _Tp&&>
+    : public is_assignable<_Tp&, const _Tp&>
     { };
 
   /// is_copy_assignable
@@ -1077,7 +1077,7 @@
 
   template<typename _Tp>
     struct __is_nt_copy_assignable_impl<_Tp, false>
-    : public is_nothrow_assignable<_Tp&, const _Tp&&>
+    : public is_nothrow_assignable<_Tp&, const _Tp&>
     { };
 
   /// is_nothrow_copy_assignable