[llvm] [MC,ELF] Use loc from the directive for `.abort` (PR #99648)

[Dmitriy Chestnykh via llvm-commits]

chestnykh wrote:

pipeline error seems to be unrelated:
`fatal error: 'llvm/ADT/DenseMapInfo.h' file not found`

https://github.com/llvm/llvm-project/pull/99648