Import libc++ trunk r165949. Among other improvements and bug fixes,

this has many visibility problems fixed, which should help with
compiling certain ports that exercise C++11 mode (i.e. Firefox).

Also, belatedly add the LICENSE.TXT and accompanying CREDITS.TXT files,
which are referred to in all the source files.

MFC after:	1 month

1 files changed, 13 insertions, 6 deletions

diff --git a/contrib/libc++/include/__locale b/contrib/libc++/include/__locale
index b1e0711..e6c357f 100644
--- a/contrib/libc++/include/__locale
+++ b/contrib/libc++/include/__locale
@@ -31,17 +31,24 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-class locale;
+class _LIBCPP_VISIBLE locale;
 
-template <class _Facet> bool has_facet(const locale&) _NOEXCEPT;
-template <class _Facet> const _Facet& use_facet(const locale&);
+template <class _Facet>
+_LIBCPP_INLINE_VISIBILITY
+bool
+has_facet(const locale&) _NOEXCEPT;
+
+template <class _Facet>
+_LIBCPP_INLINE_VISIBILITY
+const _Facet&
+use_facet(const locale&);
 
 class _LIBCPP_VISIBLE locale
 {
 public:
     // types:
-    class facet;
-    class id;
+    class _LIBCPP_VISIBLE facet;
+    class _LIBCPP_VISIBLE id;
 
     typedef int category;
     static const category // values assigned here are for exposition only
@@ -119,7 +126,7 @@ class _LIBCPP_VISIBLE locale::id
 
     static int32_t __next_id;
 public:
-    _LIBCPP_INLINE_VISIBILITY id() {}
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR id() :__id_(0) {}
 private:
     void __init();
     void operator=(const id&); // = delete;