Add 3 more missing inline/visibility attributes.

These are the cases when an out-of-class definition of a method is
marked _LIBCPP_INLINE_VISIBILITY, but the in-class declaration is
not. This will start failing when (or if) we switch to
attribute((internal_linkage)).

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@255166 91177308-0d34-0410-b5e6-96231b3b80d8

include/bitset

@@ -202,6 +202,7 @@ protected:
 private:
 #ifdef _LIBCPP_HAS_NO_CONSTEXPR
     void __init(unsigned long long __v, false_type) _NOEXCEPT;
+    _LIBCPP_INLINE_VISIBILITY
     void __init(unsigned long long __v, true_type) _NOEXCEPT;
 #endif  // _LIBCPP_HAS_NO_CONSTEXPR
     unsigned long to_ulong(false_type) const;

include/memory

@@ -3995,6 +3995,7 @@ public:
             is_convertible<_Yp*, element_type*>::value,
             shared_ptr&
         >::type
+        _LIBCPP_INLINE_VISIBILITY
         operator=(auto_ptr<_Yp> __r);
 #endif
     template <class _Yp, class _Dp>
@@ -4008,6 +4009,7 @@ public:
         _LIBCPP_INLINE_VISIBILITY
         operator=(unique_ptr<_Yp, _Dp>&& __r);
 #else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+        _LIBCPP_INLINE_VISIBILITY
         operator=(unique_ptr<_Yp, _Dp> __r);
 #endif