[update_llc_test_checks][VE] Add baseline test for PIC function regex

While working on https://reviews.llvm.org/D131429, I got a test diff in
one of the VE tests and running update_llc_test_checks.py deleted all the
code for that function. This is a baseline test for this bug (incorrect
regex for VE when .Lfoo$local symbols are used).

Reviewed By: kaz7

Differential Revision: https://reviews.llvm.org/D131434