[clang] [Clang][Driver] Split fsanitize.c test (PR #169952)

[Marco Elver via cfe-commits]

melver wrote:

> Verified this is NFC:
> [..]

Thanks!

I also used a similar approach with [this script](https://gist.github.com/melver/f486222c8f191bbbb8c64a5492bb041b):
```
% git diff HEAD~1 | ~/check_refactor/check_refactor.py
--- LOST LINES (Removed but not re-added) ---
[1 copy] // * Test -fsanitize-trap */
[1 copy] // * Test -fsanitize-merge *
[1 copy] // * Test -fsanitize-annotate-debug-info *
[1 copy] // CHECK-NO-RECOVER-UBSAN-NOT: sanitize-recover
[1 copy] // * Test -fsanitize-skip-hot-cutoff *

--- ADDED LINES (Added but not present originally) ---
[1 copy] // CHECK-NO-RECOVER-UBSAN-NOT: -fsanitize-recover
[1 copy] // This file contains feature-unspecific common -fsanitize= driver tests.
[1 copy] // Where possible avoid adding new tests to this file, and instead group tests
[1 copy] // in feature-specific fsanitize-*.c test files.
```

The `CHECK-NO-RECOVER-UBSAN-NOT` change is making the check more precise, as otherwise it'd match the new file name and fail.

https://github.com/llvm/llvm-project/pull/169952