[all-commits] [llvm/llvm-project] 9598f7: [Clang] Remove __is_referenceable builtin (#123078)

[Nikolas Klauser via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9598f74133a358588ab7e38ec6b5e39a4143bdd0
      https://github.com/llvm/llvm-project/commit/9598f74133a358588ab7e38ec6b5e39a4143bdd0
  Author: Nikolas Klauser <nikolasklauser at berlin.de>
  Date:   2025-02-06 (Thu, 06 Feb 2025)

  Changed paths:
    M clang/docs/LanguageExtensions.rst
    M clang/docs/ReleaseNotes.rst
    M clang/include/clang/Basic/TokenKinds.def
    M clang/lib/Parse/ParseDeclCXX.cpp
    M clang/lib/Parse/ParseExpr.cpp
    M clang/lib/Sema/SemaExprCXX.cpp
    M clang/test/SemaCXX/type-traits.cpp

  Log Message:
  -----------
  [Clang] Remove __is_referenceable builtin (#123078)

`__is_referenceable` is almost unused in the wild, and the few cases I
was able to find had checks around them. Since the places in the
standard library where `__is_referenceable` is used have bespoke
builtins, it doesn't make a ton of sense to keep this builtin around.

`__is_referenceable` has been documented as deprecated in Clang 20.



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