{"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"if"}]}
            if !matches!(hir_type.kind(), ty::FnDef(..)) {
            let hir_type = tcx.type_of(local_def_id).instantiate_identity();
                span_bug!(sp, "main has a non-function type: found `{}`", hir_type);