[compiler-rt] Check if LLD is built when checking if lto_supported (PR #92752)

[Vitaly Buka via llvm-commits]

vitalybuka wrote:

> Hi, just wanted to check if you have another other thoughts on the earlier questions, or on how to proceed here?
> 
> Thanks!

Unfortunately there is not much to add.

These are bots maintained by my team: https://lab.llvm.org/buildbot/#/waterfall?tags=sanitizer

All steps print number of executed test.
https://lab.llvm.org/buildbot/#/builders/269/builds/9539

On some of them 2344a72dd63661098244b3bc43696710686ef9d9 enabled additional tests.
My guess it was sanitizer-aarch64-linux or sanitizer-x86_64-linux.

It should be OK to proceed with:
1. Land this patch
2. Compare number of tests on build before and after the patch on those bots.
3. If regressed, revert and investigate



https://github.com/llvm/llvm-project/pull/92752