{"ast_node_type":"function","tokens":[{"end":65,"kind":"keyword","start":0,"text":"fn"}]}
fn optimized_mir(tcx: TyCtxt<'_>, did: LocalDefId) -> &Body<'_> {
/// Optimize the MIR and prepare it for codegen.
    tcx.arena.alloc(inner_optimized_mir(tcx, did))