#![attr]
#![attr(true)]
#![attr(ident)]
#![attr(ident, 100, true, "true", ident = 100, ident = "hello", ident(100))]
#![attr(100)]
#![attr(enabled = true)]
#![enabled(true)]
#![attr("hello")]
#![repr(C, align = 4)]
#![repr(C, align(4))]