{"ast_node_type":"function","tokens":[{"end":73,"kind":"keyword","start":0,"text":"fn"}]}
    fn new(tcx: TyCtxt<'tcx>, def_id: DefId, body: &Body<'tcx>) -> Self {
impl<'tcx> Inliner<'tcx> for ForceInliner<'tcx> {
        Self { tcx, typing_env: body.typing_env(tcx), def_id, history: Vec::new(), changed: false }