[lld] [lld][ELF] Support LLVM repository and LLVM revision information (PR #97323)

[Martin Storsjö via llvm-commits]

mstorsjo wrote:

Sorry, but this change has broken how Meson detects and disambiguates between the `ld.lld` and `lld-link` interfaces for Windows targets. See https://github.com/mesonbuild/meson/blob/1.4.1/mesonbuild/linkers/detect.py#L67 - Meson looks for literally the string `(compatible with GNU linkers)` including the parentheses.

I would request reinstating that form.

We should of course request Meson to match a less strict pattern here as well, but even then, we should work with the variety of existing Meson versions out there as well, at least for a couple years after that has been changed.

https://github.com/llvm/llvm-project/pull/97323