[all-commits] [llvm/llvm-project] 640ef5: Reapply "[Clang][Sema] Diagnose unexpanded packs i...

[Krystian Stasiowski via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 640ef55bbbc081b72a87f71cab1bce08762e48b0
      https://github.com/llvm/llvm-project/commit/640ef55bbbc081b72a87f71cab1bce08762e48b0
  Author: Krystian Stasiowski <sdkrystian at gmail.com>
  Date:   2024-01-04 (Thu, 04 Jan 2024)

  Changed paths:
    M clang-tools-extra/test/clang-doc/templates.cpp
    M clang/docs/ReleaseNotes.rst
    M clang/lib/Sema/SemaDecl.cpp
    M clang/test/CXX/temp/temp.decls/temp.variadic/p5.cpp

  Log Message:
  -----------
  Reapply "[Clang][Sema] Diagnose unexpanded packs in the template argument lists of function template specializations" (#76876) (#76915)

This reapplies f034044ad94d6f7ccec13d89f08acac257ed28bb after it was
reverted by 687396b5f4ba0713d103ebd172b308e92eb930cc due to a test
failure in clang-doc.

The test in question declares a partial specialization of a function
template, as well as an explicit specialization of the same function
template. Both declarations are now set as invalid, meaning neither is
emitted by clang-doc.

Since this is the sole test of function template specializations in
clang-doc, I presume the intent is for the partial specialization to
actually be the primary template. Doing so results in the expected
output.