range_plus_one help suggestion should not remove braces

The following code triggers the range_plus_one lint correctly. However the suggestion, if applied explicitly ie by an IDE, removes the braces which causes a compile error.

fn main() {
    let from = 5;
    let to = 16;
    for n in (from..to + 1).rev() {
        eprintln!("{}", n);
    }
}

  --> src/main.rs:17:14
   |
17 |     for n in (from..to + 1).rev() {
   |              ^^^^^^^^^^^^^^ help: use: `from..=to`
   |
   = note: #[warn(range_plus_one)] on by default
   = help: for further information visit https://rust-lang-nursery.github.io/rust-clippy/v0.0.212/index.html#range_plus_one

Incorrect suggested code:

fn main() {
    let from = 5;
    let to = 16;
    for n in from..=to.rev() {
        eprintln!("{}", n);
    }
}

Reproduce the range_plus_one lint with the Rust example in the issue and inspect the lint's suggestion-generation entry point. Check why the replacement drops the surrounding range parentheses, then verify that the suggested code preserves them, compiles, and still produces the intended inclusive range.