tests: port split-debuginfo to rmake.rs

Co-authored-by: Oneirical <[email protected]>

Author: jieyouxu

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -1,5 +1,4 @@
 run-make/cat-and-grep-sanity-check/Makefile
 run-make/jobserver-error/Makefile
-run-make/split-debuginfo/Makefile
 run-make/symbol-mangling-hashed/Makefile
 run-make/translation/Makefile