syntax_data: {"ast_node_type":"variable","tokens":[{"end":46,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                         let fake_borrow_temp =
context_before:                             Ty::new_imm_ref(tcx, tcx.lifetimes.re_erased, fake_borrow_deref_ty);
context_after:                             self.local_decls.push(LocalDecl::new(fake_borrow_ty, expr_span));