{"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"//"}]}
            // codegen a call to that function without generating code for the function itself.
            // of those intrinsics, we need to include a mono item for panic_nounwind, else we may try to
            let def_id = tcx.require_lang_item(LangItem::PanicNounwind, source);