tests/source/issue-4646.rs - rustfmt - Git at Google

 trait Foo {
     fn bar(&self)
     // where
     //     Self: Bar
     ;
 }

 trait Foo {
     fn bar(&self)
     // where
     //     Self: Bar
 ;
 }

 trait Foo {
     fn bar(&self)
     // where
     //     Self: Bar
         ;
 }
	trait Foo {
	fn bar(&self)
	// where
	// Self: Bar
	;
	}

	trait Foo {
	fn bar(&self)
	// where
	// Self: Bar
	;
	}

	trait Foo {
	fn bar(&self)
	// where
	// Self: Bar
	;
	}