syntax_data: {"ast_node_type":"variable","tokens":[{"end":88,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:         let ref_src = self.temp(Ty::new_ref(self.tcx, re_erased, ty, mutability), span);
context_before:         let method = trait_method(self.tcx, trait_item, method, [ty]);
context_after:         // `let ref_src = &src_place;`