[llvm-branch-commits] [compiler-rt] [tsan] Fallback to top frame (PR #77145)

[Vitaly Buka via llvm-branch-commits]

https://github.com/vitalybuka created https://github.com/llvm/llvm-project/pull/77145

Probably it's not important, as it should not happen,
but if all frames are internal we should pick top, not
the bottom frame.