syntax_data: {"ast_node_type":"variable","tokens":[{"end":84,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                 let old_inside_adt = std::mem::replace(&mut self.inside_adt, false);
context_before:             PatKind::Deref { .. } | PatKind::DerefPattern { .. } => {
context_after:                 visit::walk_pat(self, pat);