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/fstream b/include/fstream
index 1b8e7a0..0a5cf92 100644
--- a/include/fstream
+++ b/include/fstream
@@ -180,7 +180,7 @@
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 template <class _CharT, class _Traits>
-class _LIBCPP_VISIBLE basic_filebuf
+class _LIBCPP_TYPE_VIS basic_filebuf
     : public basic_streambuf<_CharT, _Traits>
 {
 public:
@@ -978,7 +978,7 @@
 // basic_ifstream
 
 template <class _CharT, class _Traits>
-class _LIBCPP_VISIBLE basic_ifstream
+class _LIBCPP_TYPE_VIS basic_ifstream
     : public basic_istream<_CharT, _Traits>
 {
 public:
@@ -1123,7 +1123,7 @@
 // basic_ofstream
 
 template <class _CharT, class _Traits>
-class _LIBCPP_VISIBLE basic_ofstream
+class _LIBCPP_TYPE_VIS basic_ofstream
     : public basic_ostream<_CharT, _Traits>
 {
 public:
@@ -1268,7 +1268,7 @@
 // basic_fstream
 
 template <class _CharT, class _Traits>
-class _LIBCPP_VISIBLE basic_fstream
+class _LIBCPP_TYPE_VIS basic_fstream
     : public basic_iostream<_CharT, _Traits>
 {
 public: