No functionality change at this time.  I've split _LIBCPP_VISIBLE up into two flags: _LIBCPP_TYPE_VIS and _LIBCPP_FUNC_VIS.  This is in preparation for taking advantage of clang's new __type_visibility__ attribute.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@176593 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/set b/include/set
index 36d3dd4..11ea965 100644
--- a/include/set
+++ b/include/set
@@ -346,7 +346,7 @@
 
 template <class _Key, class _Compare = less<_Key>,
           class _Allocator = allocator<_Key> >
-class _LIBCPP_VISIBLE set
+class _LIBCPP_TYPE_VIS set
 {
 public:
     // types:
@@ -685,7 +685,7 @@
 
 template <class _Key, class _Compare = less<_Key>,
           class _Allocator = allocator<_Key> >
-class _LIBCPP_VISIBLE multiset
+class _LIBCPP_TYPE_VIS multiset
 {
 public:
     // types: