use self; gets entirely deleted

[emilyyyylime]

before:

// hi
use me; // me
use self; // self
use this; // this
// bye

after:

// hi
 // self
use me; // me
use this; // this
// bye

use self; is indeed invalid but I think it's more useful for users to see the rustc error (self imports are only allowed within a { } list) than for the line to be entirely deleted.

[emilyyyylime]

I guess this also causes non-canonical formats :P (although eventually canonical):

use self::self::self::self;

->

use self::self::self;

->

use self::self;

->

use self;

->