[llvm] Add New Pass Manager wiring for x86-avoid-trailing-call (PR #166723)

[Aiden Grossman via llvm-commits]

https://github.com/boomanaiden154 commented:

Sorry, a couple nits I didn't spot initially:
1. Code formatting. Running `git clang-format HEAD~1` locally should fix all those.
2. LLVM commits are conventionally tagged in the title with square brackets. Prefixing the current title with `[X86][NewPM]` I think should be sufficient.

https://github.com/llvm/llvm-project/pull/166723