[Chapel Merge] Add prediff for twoLocales

Branch: refs/heads/main
Revision: 3222bd66b199fb28cddf3bbd05b5496910004980
Author: jabraham17
Link: Add prediff for twoLocales by jabraham17 · Pull Request #28855 · chapel-lang/chapel · GitHub
Log Message:
Add prediff for twoLocales (#28855)

Adds a prediff for a parallel debugger test which can sometimes throw
GASNet errors

[Reviewed by @dlongnecke-cray]

Compare: Comparing aca931c03beaad9a0cc6b6bedf377b47933c9bc2...8974f0f1a4db3c97bbdc8830cf3da16bc867a169 · chapel-lang/chapel · GitHub

Diff:
M test/llvm/debugInfo/chpl-parallel-dbg/PREDIFF
A test/llvm/debugInfo/chpl-parallel-dbg/prediff-for-gasnet-udp
https://github.com/chapel-lang/chapel/pull/28855.diff