[all-commits] [llvm/llvm-project] 2427c8: [Clang][Sema] Fix regression due to missing ambigu...

[Shafik Yaghmour via All-commits]

  Branch: refs/heads/release/18.x
  Home:   https://github.com/llvm/llvm-project
  Commit: 2427c85a1ac967389be92b613925f8a71f443ce3
      https://github.com/llvm/llvm-project/commit/2427c85a1ac967389be92b613925f8a71f443ce3
  Author: Shafik Yaghmour <shafik.yaghmour at intel.com>
  Date:   2024-02-06 (Tue, 06 Feb 2024)

  Changed paths:
    M clang/include/clang/Sema/Lookup.h
    M clang/test/CXX/class.derived/class.member.lookup/p11.cpp

  Log Message:
  -----------
  [Clang][Sema] Fix regression due to missing ambiguity check before attempting access check. (#80730)

Previously when fixing ambiguous lookup diagnostics in
cc1b6668c57170cd440d321037ced89d6a61a9cb The change refactored
`LookupResult` to split out diagnosing access and ambiguous lookups. The
call to `getSema().CheckLookupAccess(...)` should have guarded by a
check for isAmbiguous(). This change adds that guard.

Fixes: https://github.com/llvm/llvm-project/issues/80435
(cherry picked from commit a7bc9cb6ffa91ff0ebabc45c0c7263c7c2c3a4de)