tests/ui/parser/attribute/attr-unquoted-ident.rs

// compile-flags: -Zdeduplicate-diagnostics=yes
// run-rustfix

fn main() {
    #[cfg(key=foo)]
    //~^ ERROR expected unsuffixed literal, found `foo`
    //~| HELP surround the identifier with quotation marks to parse it as a string
    println!();
    #[cfg(key="bar")]
    println!();
    #[cfg(key=foo bar baz)]
    //~^ ERROR expected unsuffixed literal, found `foo`
    //~| HELP surround the identifier with quotation marks to parse it as a string
    println!();
}