Ensure that all Breakpoint.java files are identical for CTS

These files all need to be identical in order for us to use these
tests with CTS. Fix the single difference between them.

Test: for i in `find . -name "Breakpoint.java" -type f`; do
        diff $i test/993-breakpoints/src/art/Breakpoint.java;
      done
Bug: 73252141
Change-Id: I9d6e395dae3ff8f196b0dfc310810db8486068be