syntax_data: {"ast_node_type":"variable","tokens":[{"end":100,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                     let func = Operand::function_handle(this.tcx, clone_fn, [ty.into()], expr_span);
context_before:                     let clone_fn = this.tcx.associated_item_def_ids(clone_trait)[0];
context_after:                     let ref_ty = Ty::new_imm_ref(this.tcx, this.tcx.lifetimes.re_erased, ty);