[Chapel Merge] Adjust some tests to reflect the CHPL_LLVM=bundled

Branch: refs/heads/master
Revision: 65f97bc
Author: gbtitus
Log Message:

Merge pull request #16773 from gbtitus/fix-chpl_llvm-calls-in-test

Adjust some tests to reflect the CHPL_LLVM=bundled change.

(Not reviewed; test(s) only and seems obvious.)

Modified Files:
M test/llvm/PREDIFF
M test/llvm/llvmDebug/sub_test

Compare: https://github.com/chapel-lang/chapel/compare/075b1ad6d4d0...65f97bca3904