[all-commits] [llvm/llvm-project] a1a6a8: [clang] fix matching of nested template template p...

[Matheus Izvekov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a1a6a839763079b54d8910599549b9e6d4dd5fe6
      https://github.com/llvm/llvm-project/commit/a1a6a839763079b54d8910599549b9e6d4dd5fe6
  Author: Matheus Izvekov <mizvekov at gmail.com>
  Date:   2025-03-10 (Mon, 10 Mar 2025)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/include/clang/Sema/Sema.h
    M clang/lib/Sema/SemaDecl.cpp
    M clang/lib/Sema/SemaDeclCXX.cpp
    M clang/lib/Sema/SemaTemplate.cpp
    M clang/lib/Sema/SemaTemplateDeduction.cpp
    M clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
    M clang/test/SemaTemplate/cwg2398.cpp
    M clang/test/SemaTemplate/temp_arg_template_p0522.cpp
    M clang/unittests/AST/DeclPrinterTest.cpp

  Log Message:
  -----------
  [clang] fix matching of nested template template parameters (#130447)

When checking the template template parameters of template template
parameters, the PartialOrdering context was not correctly propagated.

This also has a few drive-by fixes, such as checking the template
parameter lists of template template parameters, which was previously
missing and would have been it's own bug, but we need to fix it in order
to prevent crashes in error recovery in a simple way.

Fixes #130362



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