[Chapel Merge] Fix regex allocationCounts prediff to disregard si

Branch: refs/heads/main
Revision: 84d8697
Author: aconsroe-hpe
Link: Unavailable
Log Message:

Merge pull request #18754 from aconsroe-hpe/fix/regex-allocation-count-test

Fix regex allocationCounts prediff to disregard size

reviewed by ronawho

This test is intended to count the number of allocations, but is not
sensitive to the size of allocations. Because the size of allocation
will change between jemalloc and cstdlib, we prediff the size out

Modified Files:
M test/regex/allocationCounts.good

M test/regex/allocationCounts.prediff

Compare: https://github.com/chapel-lang/chapel/compare/767ac44a99e4...84d8697557bb