{"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"//"}]}
    // FIXME(cjgillot) Stop hashing HIR manually here.
fn hash_mir_source<'tcx>(tcx: TyCtxt<'tcx>, hir_body: &'tcx hir::Body<'tcx>) -> u64 {
    let owner = hir_body.id().hir_id.owner;