fn wait_for_query<'tcx, C: QueryCache>(
query: &'tcx QueryVTable<'tcx, C>,
tcx: TyCtxt<'tcx>,
span: Span,
key: C::Key,
latch: QueryLatch<'tcx>,
current: Option<QueryJobId>,
) -> (C::Value, Option<DepNodeIndex>)fn wait_for_query<'tcx, C: QueryCache>(
query: &'tcx QueryVTable<'tcx, C>,
tcx: TyCtxt<'tcx>,
span: Span,
key: C::Key,
latch: QueryLatch<'tcx>,
current: Option<QueryJobId>,
) -> (C::Value, Option<DepNodeIndex>)