Function rustc_query_impl::make_query::fn_abi_of_instance

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

Compute a FnAbi suitable for declaring/defining an fn instance, and for direct calls to an fn.

NB: that includes virtual calls, which are represented by “direct calls” to an InstanceDef::Virtual instance (of <dyn Trait as Trait>::fn).