syntax_data: {"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // many fewer subsequent dereferences.) But that gives a small but
context_before:     // like how `Predicate::kind` and `Region::kind` do. (It would result in
context_after:     // noticeable performance hit. See #126069 for details.