syntax_data: {"ast_node_type":"other","tokens":[{"end":48,"kind":"keyword","start":0,"text":"hir::PatKind::Deref(subpattern)"}]}
source_snippet:             hir::PatKind::Deref(subpattern) => {
context_after:                 let borrow = self.typeck_results.deref_pat_borrow_mode(ty, subpattern);