syntax_data: {"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"s.visit_binding(pat.span,"}]}
source_snippet:                     s.visit_binding(pat.span, mode, explicit_ba, ident);
context_before:                 if let Some(s) = &mut self.rust_2024_migration {
context_after:                 }