Rollup merge of #138434 - compiler-errors:lint-level-pat-field, r=jieyouxu

Visit `PatField` when collecting lint levels

Fixes #138428

Side-note, I vaguely skimmed over the other nodes we could be visiting here and it doesn't *seem* to me that we're missing anything, though I may be mistaken given recent(?) support for attrs in where clauses(??). Can be fixed in a follow-up PR.

Author: jhpratt