syntax_data: {"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"visit_subpat(self,"}]}
source_snippet:                     visit_subpat(self, &subpattern.pattern, &subpattern_user_tys, f);
context_before:                     debug!("visit_primary_bindings: subpattern_user_tys={subpattern_user_tys:?}");
context_after:                 }