[clang] [PS5][Driver] Supply libraries and CRT objects to the linker (PR #115497)

[Jeremy Morse via cfe-commits]

https://github.com/jmorse commented:

Just to check my understanding, things like CHECK-MAIN-CRT-SAME are going to shift the match-position that FileCheck is looking at forwards, so that we have to match in the correct order, yes?

I get the feeling that given how much of the construct-a-job logic filters for `!Relocatable` it might be worth having that as an early exit. On the other hand, the logic here is already a complicated matrix of expectations, no need to make it more complicated in the name of lines-of-code.

For the CHECK-NO... flavour of checklines, would they be better as `--check-implicit-not` arguments to FileCheck, or is it alright to rely on them being in a rigid order? (No strong opinion).

https://github.com/llvm/llvm-project/pull/115497