tests/headers/forward-enum-decl.hpp - third_party/github.com/rust-lang/rust-bindgen - Git at Google

 // bindgen-flags: --rustified-enum ".*" -- -std=c++11

 enum class CSSPseudoClassType : int;

 enum class CSSPseudoClassType : int {
   empty,
   link,
 };
	// bindgen-flags: --rustified-enum ".*" -- -std=c++11

	enum class CSSPseudoClassType : int;

	enum class CSSPseudoClassType : int {
	empty,
	link,
	};