Update libc++ to 3.8.0. Excerpted list of fixes (with upstream revision

numbers):

r242679 Implement the plugin-based version of std::search. There are no
        searchers yet; those are coming soon.
r242682 Implement the default searcher for std::experimental::search.
r243728 Add <experimental/any> v2.
r245330 implement more of N4258 - Cleaning up noexcept in the standard
        library. Specifically add new noexcept stuff to vector and
	string's move-assignment operations
r245334 Fix PR22606 - Leak pthread_key with static storage duration to
        ensure all of thread-local destructors are called.
r245335 Fix PR23589: std::function doesn't recognize null pointer to
        varargs function.
r247036 Implementation of Boyer-Moore and Boyer-Moore-Horspool
        searchers for the LFTS.
r249325 Implement LWG#2063, and update the issues links to point to the
        github generated pages
r249738 Split <ctype.h> out of <cctype>.
r249739 Split <errno.h> out of <cerrno>.
r249740 Split <float.h> out of <cfloat>.
r249741 Split <inttypes.h> out of <cinttypes>.
r249742 Split <math.h> out of <cmath>.
r249743 Split <setjmp.h> out of <csetjmp>.
r249761 Split <stddef.h> out of <cstddef>.
r249798 Split <stdio.h> out of <cstdio>.
r249800 Split <stdlib.h> out of <cstdlib>.
r249889 Split <wchar.h> out of <cwchar>.
r249890 Split <wctype.h> out of <cwctype>.
r249929 Split <string.h> out of <cstring>.
r250254 ABI versioning macros for libc++.
r251246 Fix LWG#2244: basic_istream::seekg
r251247 Fix LWG#2127: Move-construction with raw_storage_iterator.
r251253 Fix LWG#2476: scoped_allocator_adaptor is not assignable
r251257 Fix LWG#2489: mem_fn() should be noexcept
r251618 Implement P0004R1 'Remove Deprecated iostreams aliases'
r251766 Implement the first part of P0006R0: Adopt Type Traits Variable
        Templates for C++17.
r252195 Implement P0092R1 for C++1z
r252350 Allow deque to handle incomplete types.
r252406 More of P0006R0: type traits variable aliases for C++17.
r252407 Implement LWG#2353: std::next is over-constrained
r252905 Implement P0074: Making owner_less more flexible
r253215 Implement P0013R1: Logical Operator Type Traits.
r253274 Implement P0007: Constant View: A proposal for a std::as_const
        helper function template.
r254119 Add static_assert to set/multiset/map/multimap/forward_list/deque
        that the allocator's value_type match the container's value_type.
r254283 Implement more of P0006; Type Traits Variable Templates.
r255941 LWG2485: get() should be overloaded for const tuple&&.
r256325 Fix LWG Issue #2367 - Fixing std::tuple and std::pair's default
        constructors.
r256652 Fix for ALL undefined behavior in <list>.
r256859 First half of LWG#2354: 'Unnecessary copying when inserting
        into maps with braced-init syntax'

Exp-run:	antoine
Relnotes:	yes

1 files changed, 10 insertions, 5 deletions

diff --git a/contrib/libc++/include/__split_buffer b/contrib/libc++/include/__split_buffer
index 727b1b6..79d1aa1 100644
--- a/contrib/libc++/include/__split_buffer
+++ b/contrib/libc++/include/__split_buffer
@@ -56,9 +56,12 @@ public:
     _LIBCPP_INLINE_VISIBILITY pointer&              __end_cap() _NOEXCEPT       {return __end_cap_.first();}
     _LIBCPP_INLINE_VISIBILITY const pointer&        __end_cap() const _NOEXCEPT {return __end_cap_.first();}
 
+    _LIBCPP_INLINE_VISIBILITY
     __split_buffer()
         _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value);
+    _LIBCPP_INLINE_VISIBILITY
     explicit __split_buffer(__alloc_rr& __a);
+    _LIBCPP_INLINE_VISIBILITY
     explicit __split_buffer(const __alloc_rr& __a);
     __split_buffer(size_type __cap, size_type __start, __alloc_rr& __a);
     ~__split_buffer();
@@ -128,7 +131,9 @@ public:
 
     _LIBCPP_INLINE_VISIBILITY void __destruct_at_begin(pointer __new_begin)
         {__destruct_at_begin(__new_begin, is_trivially_destructible<value_type>());}
+        _LIBCPP_INLINE_VISIBILITY
         void __destruct_at_begin(pointer __new_begin, false_type);
+        _LIBCPP_INLINE_VISIBILITY
         void __destruct_at_begin(pointer __new_begin, true_type);
 
     _LIBCPP_INLINE_VISIBILITY
@@ -266,7 +271,7 @@ __split_buffer<_Tp, _Allocator>::__construct_at_end(_ForwardIterator __first, _F
 }
 
 template <class _Tp, class _Allocator>
-inline _LIBCPP_INLINE_VISIBILITY
+inline
 void
 __split_buffer<_Tp, _Allocator>::__destruct_at_begin(pointer __new_begin, false_type)
 {
@@ -275,7 +280,7 @@ __split_buffer<_Tp, _Allocator>::__destruct_at_begin(pointer __new_begin, false_
 }
 
 template <class _Tp, class _Allocator>
-inline _LIBCPP_INLINE_VISIBILITY
+inline
 void
 __split_buffer<_Tp, _Allocator>::__destruct_at_begin(pointer __new_begin, true_type)
 {
@@ -309,7 +314,7 @@ __split_buffer<_Tp, _Allocator>::__split_buffer(size_type __cap, size_type __sta
 }
 
 template <class _Tp, class _Allocator>
-inline _LIBCPP_INLINE_VISIBILITY
+inline
 __split_buffer<_Tp, _Allocator>::__split_buffer()
     _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value)
     : __first_(nullptr), __begin_(nullptr), __end_(nullptr), __end_cap_(nullptr)
@@ -317,14 +322,14 @@ __split_buffer<_Tp, _Allocator>::__split_buffer()
 }
 
 template <class _Tp, class _Allocator>
-inline _LIBCPP_INLINE_VISIBILITY
+inline
 __split_buffer<_Tp, _Allocator>::__split_buffer(__alloc_rr& __a)
     : __first_(nullptr), __begin_(nullptr), __end_(nullptr), __end_cap_(nullptr, __a)
 {
 }
 
 template <class _Tp, class _Allocator>
-inline _LIBCPP_INLINE_VISIBILITY
+inline
 __split_buffer<_Tp, _Allocator>::__split_buffer(const __alloc_rr& __a)
     : __first_(nullptr), __begin_(nullptr), __end_(nullptr), __end_cap_(nullptr, __a)
 {