Function rustc_query_impl::make_query::vtable_trait_upcasting_coercion_new_vptr_slot

pub fn vtable_trait_upcasting_coercion_new_vptr_slot<'tcx>(
    tcx: QueryCtxt<'tcx>, 
    key: vtable_trait_upcasting_coercion_new_vptr_slot<'tcx>
) -> QueryStackFrame

[query description - consider adding a doc-comment!] finding the slot within vtable for trait object key.1 vtable ptr during trait upcasting coercion from key.0 vtable