Derived `PartialEq` not recognized for const-generic type when other `PartialEq` is present (type-mismatch)

[NyxCode]

I think I discovered a pretty severe bug related to const-generics as they are available on stable.

rust-analyzer version: 1.65.0-nightly (7480389 2022-08-25)
rustc version: 1.63.0 (4b91a6ea7 2022-08-08)
relevant settings: n/a

#[derive(Copy, Clone, Debug, Eq, PartialEq, PartialOrd, Ord)]
struct MyStruct<const X: usize>(u32);

impl<const X: usize> PartialEq<u16> for MyStruct<X> {
    fn eq(&self, v: &u16) -> bool {
        self.0 == *v as u32
    }
}

fn compare<const X: usize>(a: MyStruct<X>, b: MyStruct<X>) {
    let eq = a == b; // expected u16, found MyStruct<X> rust-analyzer[type-mismatch](https://rust-analyzer.github.io/manual.html#type-mismatch)
}

The error goes away if

• the const-generic X is removed or
• the PartialEq<u16> impl is removed

[lowr]

Related: #11878, #11957

We currently ignore const parameters in certain situations. This should be fixed when we get generic params ordering aligned with chalk and remove the hack introduced in the PRs above.