[gcc(refs/users/ppalka/heads/integer_class_type)] Remove _GLIBCXX_INTEGER_LIKE_TYPES

[Patrick Palka]

https://gcc.gnu.org/g:b2124ea5933895cac3664d30f0467f8060171fe0

commit b2124ea5933895cac3664d30f0467f8060171fe0
Author: Patrick Palka <ppalka@gcc.gnu.org>
Date:   Thu Jan 16 15:29:38 2020 -0500

    Remove _GLIBCXX_INTEGER_LIKE_TYPES

Diff:
---
 libstdc++-v3/include/bits/iterator_concepts.h | 12 ++----------
 libstdc++-v3/include/bits/range_access.h      |  3 ---
 2 files changed, 2 insertions(+), 13 deletions(-)

diff --git a/libstdc++-v3/include/bits/iterator_concepts.h b/libstdc++-v3/include/bits/iterator_concepts.h
index c7d14f5..32cf02c 100644
--- a/libstdc++-v3/include/bits/iterator_concepts.h
+++ b/libstdc++-v3/include/bits/iterator_concepts.h
@@ -494,27 +494,19 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 
   namespace ranges::__detail
   {
-#ifdef _GLIBCXX_INTEGER_LIKE_TYPES
     class __max_diff_type;
     class __max_size_type;
-#elif __SIZEOF_INT128__
-    using __max_diff_type = __int128;
-    using __max_size_type = unsigned __int128;
-#else
-    using __max_diff_type = long long;
-    using __max_size_type = unsigned long long;
-#endif
 
     template<typename _Tp>
       concept __is_integer_like = integral<_Tp>
-#if defined _GLIBCXX_INTEGER_LIKE_TYPES && __SIZEOF_INT128__
+#if __SIZEOF_INT128__
 	|| same_as<_Tp, __int128> || same_as<_Tp, unsigned __int128>
 #endif
 	|| same_as<_Tp, __max_diff_type> || same_as<_Tp, __max_size_type>;
 
     template<typename _Tp>
       concept __is_signed_integer_like = signed_integral<_Tp>
-#if defined _GLIBCXX_INTEGER_LIKE_TYPES && __SIZEOF_INT128__
+#if __SIZEOF_INT128__
 	|| same_as<_Tp, __int128>
 #endif
 	|| same_as<_Tp, __max_diff_type>;
diff --git a/libstdc++-v3/include/bits/range_access.h b/libstdc++-v3/include/bits/range_access.h
index a908718..003835a 100644
--- a/libstdc++-v3/include/bits/range_access.h
+++ b/libstdc++-v3/include/bits/range_access.h
@@ -347,7 +347,6 @@ namespace ranges
 
   namespace __detail
   {
-#ifdef _GLIBCXX_INTEGER_LIKE_TYPES
     class __max_size_type
     {
     public:
@@ -886,8 +885,6 @@ namespace ranges
     __to_unsigned_like(__max_diff_type __t) noexcept
     { return __max_size_type(__t); }
 
-#endif // _GLIBCXX_INTEGER_LIKE_TYPES
-
     template<integral _Tp>
       constexpr make_unsigned_t<_Tp>
       __to_unsigned_like(_Tp __t) noexcept