[Chapel Merge] Adjust a directory-wide prediff

Notifications Commits
1

Branch: refs/heads/master
Revision: ef67d82
Author: e-kayrakli
Log Message:

Merge pull request #17677 from e-kayrakli/llvm-prediff-fix

Adjust a directory-wide prediff

I modified this PREDIFF in Close a leak in an LLVM test, strengthen its prediff by e-kayrakli · Pull Request #17665 · chapel-lang/chapel · GitHub to
make sure that we capture any potential leak. However, I didn't realize that the
PREDIFF was linked from elsewhere. So I haven't run tests there. This PR adjusts
the PREDIFF to append the memleak table at the end of the output file instead of
overwriting it.

Test: