Support non_lifetime_binders feature

[neonaot]

Environment

• IntelliJ Rust plugin version: 0.4.188.5180-231-nightly
• Rust toolchain version: 1.69.0-nightly (7aa413d59 2023-02-19) x86_64-apple-darwin
• IDE name and version: IntelliJ IDEA 2023.1 EAP Ultimate Edition (IU-231.6471.9)
• Operating system: macOS 12.5.1
• Macro expansion: enabled
• Additional experimental features: org.rust.cargo.emulate.terminal

Problem description

It is a new (and currently incompleted) compiler feature, see rust-lang/rust#108185

Steps to reproduce

#![feature(non_lifetime_binders)]
//~^ WARN the feature `non_lifetime_binders` is incomplete

trait Trait {}

impl<T: ?Sized> Trait for T {}

fn foo()
    where
for < T> T: Trait,
{}

fn main() {
    foo();
}