[all-commits] [llvm/llvm-project] 42e2a9: Relax language comparison when matching up C++ for...

[adrian-prantl via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 42e2a90684196d6ffadf785e98ea5de0876b4a3e
      https://github.com/llvm/llvm-project/commit/42e2a90684196d6ffadf785e98ea5de0876b4a3e
  Author: Adrian Prantl <aprantl at apple.com>
  Date:   2021-06-16 (Wed, 16 Jun 2021)

  Changed paths:
    M lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp
    M lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
    M lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h

  Log Message:
  -----------
  Relax language comparison when matching up C++ forward decls with definitions

when dealing with -gmodules debug info.

This fixes the bot failures on Darwin.

A recent clang change (presumably https://reviews.llvm.org/D104291)
introduced a bug where .pcm files would identify themselves as
DW_LANG_C_plus_plus, but the .o that references them would identify as
DW_LANG_C_plus_plus_14. While that bug needs to be fixed, too, it
shows that the current strict comparison also isn't meaningful.

rdar://79423225