Clippy lint `redundant_closure_for_method_calls` incorrectly handles raw identifiers when applying fixes

Summary

When applying fixes to a codebase containing raw identifiers, code produced by clippy fix includes a path with a keyword.

In particular, it converted:

 tpe.1.all_types() .filter_map(|tpe| tpe.dotnet_refs())

into

tpe.1.all_types() .filter_map(super::r#type::r#type::Type::dotnet_refs)

when it should have converted it into:

tpe.1.all_types() .filter_map(super::type::type::Type::dotnet_refs)

the clippy lint message also contained an invalid path:

warning: redundant closure
   --> src/assembly.rs:678:33
    |
678 |                     .filter_map(|tpe| tpe.dotnet_refs())
    |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `super::type::type::Type::dotnet_refs`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure_for_method_calls

The path should be super::r#type::r#type::Type::dotnet_refs instead.

Reproducer

This short snippet is enough to trigger the issue:

mod r#type {
    pub struct Type;
    impl Type {
        pub fn f(&self) -> u8 {
            0
        }
    }
}
fn main() {
    let types = [r#type::Type];
    let _fs: Vec<_> = types.iter().map(|tpe| tpe.f()).collect();
}

Version

rustc 1.79.0-nightly (c9f8f3438 2024-03-27)
binary: rustc
commit-hash: c9f8f3438a8134a413aa5d4903e0196e44e37bbc
commit-date: 2024-03-27
host: x86_64-unknown-linux-gnu
release: 1.79.0-nightly
LLVM version: 18.1.2

Additional Labels

No response

Start at the redundant_closure_for_method_calls lint and reproduce the issue with the raw-identifier snippet in the report. Trace how the lint builds its suggested method path, then add a regression test covering raw identifiers. Done means both the diagnostic and clippy fix preserve the required r# syntax.