[all-commits] [llvm/llvm-project] ef7d46: Template Diagnostic Improvements (#99933)

[Braden Helmer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ef7d46c7e6b33b6294f23b6df290b335a761fbd5
      https://github.com/llvm/llvm-project/commit/ef7d46c7e6b33b6294f23b6df290b335a761fbd5
  Author: Braden Helmer <bradenhelmeraus at gmail.com>
  Date:   2024-07-23 (Tue, 23 Jul 2024)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/include/clang/Basic/DiagnosticSemaKinds.td
    M clang/lib/Parse/ParseStmt.cpp
    M clang/test/CXX/drs/cwg6xx.cpp
    M clang/test/CXX/temp/temp.spec/temp.expl.spec/p2-20.cpp
    M clang/test/Parser/cxx-template-decl.cpp
    M clang/test/SemaCXX/cxx1y-variable-templates_in_class.cpp
    A clang/test/SemaCXX/invalid-template-declaration.cpp
    M clang/test/SemaTemplate/class-template-decl.cpp
    M clang/test/SemaTemplate/nested-template.cpp

  Log Message:
  -----------
  Template Diagnostic Improvements (#99933)

It turns out `SemaTemplate` handles this type of diagnostic already,
however when template gets encountered, it never gets parsed as a
possible statement or declaration, only as an expression.

Fixes #17959.



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