syntax_data: {"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"lint.suggest_remove"}]}
source_snippet:             lint.suggest_remove = whole_arm_span; // Suggest to remove the match arm
context_before:             lint.matches_no_values = Some(pat_span);
context_after:             pat.walk(&mut |subpat| {