[Issue 16398] experimental allocators, add aligned reallocation for Posix

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=16398

Basile B. <b2.temp at gmx.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|aligned allocator: add      |experimental allocators,
                   |aligned reallocation for    |add aligned reallocation
                   |Posix                       |for Posix

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