{"ast_node_type":"variable","tokens":[{"end":95,"kind":"keyword","start":0,"text":"let"}]}
                        let is_implicit_coercion = coercion_source == CoercionSource::Implicit;
                    CastKind::PointerCoercion(PointerCoercion::ReifyFnPointer, coercion_source) => {
                        let src_ty = op.ty(self.body, tcx);