Rollup merge of #139618 - petrochenkov:virsugg, r=jieyouxu

compiletest: Make `SUGGESTION` annotations viral

If one of them is expected in a test file, then others should be annotated as well, in the same way as with `HELP`s and `NOTE`s.
This doesn't require much of an additional annotation burden, but simplifies the rules.

r? ```@jieyouxu```

Author: ChrisDenton