libcxx: update to LLVM 18

release/18.x branch, commit 78b99c73ee4b96fe9ce0e294d4632326afb2db42

This adds the flag `-D_LIBCPP_HARDENING_MODE` which is determined based
on the Zig optimization mode.

This commit also fixes libunwind, libcxx, and libcxxabi to properly
report sub compilation errors.

1 files changed, 0 insertions, 62 deletions

diff --git a/lib/libcxx/include/experimental/map b/lib/libcxx/include/experimental/map
deleted file mode 100644
index 8ec94e4a5b..0000000000
--- a/lib/libcxx/include/experimental/map
+++ /dev/null
@@ -1,62 +0,0 @@
-// -*- C++ -*-
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef _LIBCPP_EXPERIMENTAL_MAP
-#define _LIBCPP_EXPERIMENTAL_MAP
-
-/*
-    experimental/map synopsis
-
-// C++1z
-namespace std {
-namespace experimental {
-inline namespace fundamentals_v1 {
-namespace pmr {
-
-  template <class Key, class T, class Compare = less<Key>>
-  using map = std::map<Key, T, Compare,
-                       polymorphic_allocator<pair<const Key,T>>>;
-
-  template <class Key, class T, class Compare = less<Key>>
-  using multimap = std::multimap<Key, T, Compare,
-                                 polymorphic_allocator<pair<const Key,T>>>;
-
-} // namespace pmr
-} // namespace fundamentals_v1
-} // namespace experimental
-} // namespace std
-
- */
-
-#include <__assert> // all public C++ headers provide the assertion handler
-#include <experimental/__config>
-#include <experimental/memory_resource>
-#include <map>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-#  pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_LFTS_PMR
-
-#ifndef _LIBCPP_CXX03_LANG
-
-template <class _Key, class _Value, class  _Compare = less<_Key>>
-using map = _VSTD::map<_Key, _Value, _Compare,
-                        polymorphic_allocator<pair<const _Key, _Value>>>;
-
-template <class _Key, class _Value, class  _Compare = less<_Key>>
-using multimap = _VSTD::multimap<_Key, _Value, _Compare,
-                        polymorphic_allocator<pair<const _Key, _Value>>>;
-
-#endif // _LIBCPP_CXX03_LANG
-
-_LIBCPP_END_NAMESPACE_LFTS_PMR
-
-#endif /* _LIBCPP_EXPERIMENTAL_MAP */