src/test/ui/export-tag-variant.rs - third_party/rust - Git at Google

 mod foo {
     pub fn x() { }

     enum Y { Y1 }
 }

 fn main() { let z = foo::Y::Y1; } //~ ERROR: enum `Y` is private
	mod foo {
	pub fn x() { }

	enum Y { Y1 }
	}

	fn main() { let z = foo::Y::Y1; } //~ ERROR: enum `Y` is private