[DebugInfo][InstrRef][NFC] "Final" x86 test cleanup
These are some final test changes for using instruction referencing on X86:
* Most of these tests just have the flag switched so that they run with
instr-ref, and just work: these tests were fixed by earlier patches.
* There are some spurious differences in textual outputs,
* A few have different temporary labels in the output because more
MCSymbols are printed to the output.
Differential Revision: https://reviews.llvm.org/D114588
13 files changed: