[Chapel Merge] Make LLVM visible to XC whitebox testing

Branch: refs/heads/master
Revision: 0ec2b16
Author: daviditen
Log Message:

Merge pull request #17580 from daviditen/whitebox-smoke-test

Make LLVM visible to XC whitebox testing

[reviewed by @lydia-duncan]

Add source setup_system_llvm.bash at the install location to
common-whitebox.bash.

Signed-off-by: David Iten daviditen@users.noreply.github.com

Modified Files:
M util/cron/common-whitebox.bash

Compare: https://github.com/chapel-lang/chapel/compare/149440b7fec4...0ec2b16387fe