Custom type alias completion priority

How to customize the completion priority of type-alias?

I don't want it to always be located after the struct when completing

fn main() {
    //type Array = [u8; 256];
    struct Array;
    let _: Arr$0;
}

Output completion:

Array Array
ArrayChunks<…>~(use std::iter::ArrayChunks) ArrayChunks<{unknown}, _>
ArrayWindows<…>~(use std::slice::ArrayWindows) ArrayWindows<'_, {unknown}, _>
CharArraySearcher<…>~(use std::str::pattern::CharArraySearcher) CharArraySearcher<'_, _>
CharArrayRefSearcher<…>~(use std::str::pattern::CharArrayRefSearcher) CharArrayRefSearcher<'_, '_, _>
AllocError(use std::alloc::AllocError) AllocError
AccessError(use std::thread::AccessError) AccessError
alloc_error_handler
AddrParseError(use std::net::AddrParseError) AddrParseError
AncillaryError(use std::os::unix::net::AncillaryError) AncillaryError
AtomicOrdering(use std::intrinsics::AtomicOrdering) AtomicOrdering
AsyncIterator(alias Stream) (use std::async_iter::AsyncIterator)
IntoAsyncIterator(use std::async_iter::IntoAsyncIterator)

fn main() {
    type Array = [u8; 256];
    //struct Array;
    let _: Arr$0;
}

Output completion:

ArrayChunks<…>~(use std::iter::ArrayChunks) ArrayChunks<{unknown}, _>
ArrayWindows<…>~(use std::slice::ArrayWindows) ArrayWindows<'_, {unknown}, _>
Array
CharArraySearcher<…>~(use std::str::pattern::CharArraySearcher) CharArraySearcher<'_, _>
CharArrayRefSearcher<…>~(use std::str::pattern::CharArrayRefSearcher) CharArrayRefSearcher<'_, '_, _>
AllocError(use std::alloc::AllocError) AllocError
AccessError(use std::thread::AccessError) AccessError
alloc_error_handler
AddrParseError(use std::net::AddrParseError) AddrParseError
AncillaryError(use std::os::unix::net::AncillaryError) AncillaryError
AtomicOrdering(use std::intrinsics::AtomicOrdering) AtomicOrdering
AsyncIterator(alias Stream) (use std::async_iter::AsyncIterator)
IntoAsyncIterator(use std::async_iter::IntoAsyncIterator)

Reproduce the two Rust completion examples from the issue and compare the ordering of the struct Array and type Array results. Trace the completion-ranking entry point responsible for type aliases, then define how customization should affect the result and verify that the alias can rank ahead of the struct without disrupting other suggestions.