[gcc r14-6925] libstdc++: rename _A badname in <generator>

[Arsen Arsenović]

https://gcc.gnu.org/g:29ad18f0cf2684374d9576714fc8bd388f71f61b

commit r14-6925-g29ad18f0cf2684374d9576714fc8bd388f71f61b
Author: Arsen Arsenović <arsen@aarsen.me>
Date:   Thu Jan 4 19:42:39 2024 +0100

    libstdc++: rename _A badname in <generator>
    
    libstdc++-v3/ChangeLog:
    
            * include/std/generator (_Stateless_alloc): Rename typename _A
            to _All.

Diff:
---
 libstdc++-v3/include/std/generator | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libstdc++-v3/include/std/generator b/libstdc++-v3/include/std/generator
index e1c1ad583ab..a8ad9c44353 100644
--- a/libstdc++-v3/include/std/generator
+++ b/libstdc++-v3/include/std/generator
@@ -405,9 +405,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       }
     };
 
-    template<typename _A>
-    concept _Stateless_alloc = (allocator_traits<_A>::is_always_equal::value
-				&& default_initializable<_A>);
+    template<typename _All>
+    concept _Stateless_alloc = (allocator_traits<_All>::is_always_equal::value
+				&& default_initializable<_All>);
 
     template<typename _Alloc>
       class _Promise_alloc