[clang] [llvm] [LLVM][DWARF] Fix accelerator table switching between CU and TU (PR #77511)

[Vitaly Buka via cfe-commits]

vitalybuka wrote:

Could this be caused by the patch https://lab.llvm.org/buildbot/#/builders/236/builds/8673 ?

https://github.com/llvm/llvm-project/pull/77511