[webkit-changes] [WebKit/WebKit] 4e1abb: Make rebind<U>::other explicit in FastAllocator

[Ross Kirsling]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 4e1abb6514cdc2bf301e5ea4f299c139faa0b2ff
      https://github.com/WebKit/WebKit/commit/4e1abb6514cdc2bf301e5ea4f299c139faa0b2ff
  Author: Ross Kirsling <ross.kirsling at sony.com>
  Date:   2023-12-07 (Thu, 07 Dec 2023)

  Changed paths:
    M Source/WTF/wtf/FastMalloc.h

  Log Message:
  -----------
  Make rebind<U>::other explicit in FastAllocator
https://bugs.webkit.org/show_bug.cgi?id=265933

Reviewed by Yusuke Suzuki.

PlayStation build fix following 271419 at main.
Evidently using StdUnorderedMap<K,V>::extract(K) causes our platform to complain about rebind<U>::other being undefined.
It's trivial to define so let's just do so.

* Source/WTF/wtf/FastMalloc.h:

Canonical link: https://commits.webkit.org/271714@main