rustfmt-nightly 1.4.11

// rustfmt-normalize_comments: true
// rustfmt-fn_args_layout: Vertical
// rustfmt-brace_style: AlwaysNextLine

// Case with only one variable.
fn foo(a: u8) -> u8 {
    bar()
}

// Case with 2 variables and some pre-comments.
fn foo(a: u8 /* Comment 1 */, b: u8 /* Comment 2 */) -> u8 {
    bar()
}

// Case with 2 variables and some post-comments.
fn foo(/* Comment 1 */ a: u8, /* Comment 2 */ b: u8) -> u8 {
    bar()
}

trait Test {
    fn foo(a: u8) {}

    fn bar(a: u8) -> String {}
}