Generate function invalid closure parameter

[A4-Tacks]

rust-analyzer version: master

rustc version: rustc 1.93.0-nightly (f15a7f385 2025-11-04)

editor or extension: VIM9.1 coc-rust-analyzer-0.82.0

Strangely, I am unable to reproduce in the test-utils

code snippet to reproduce:

fn foo() {
    $0bar(&|x| true)
}

Expect:

fn foo() {
    bar(&|x| true)
}

fn bar(arg: impl Fn(_) -> bool) {
    todo!()
}

Actual:

fn foo() {
    bar(&|x| true)
}

fn bar(arg: impl Fn(;)) {
    todo!()
}