syntax_data: {"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":")"}]}
source_snippet:     ) -> Result<&'p DeconstructedPat<'p, 'tcx>, ErrorGuaranteed> {
context_before:         pat: &'p Pat<'tcx>,
context_after:         if let Err(err) = pat.pat_error_reported() {