Fixes and expands comments on how to use GPB_ENUM_FWD_DECLARE
@@ -62,7 +62,11 @@
*
* ```
* GPB_ENUM_FWD_DECLARE(Foo_Enum)
- * @property (nonatomic) Foo_Enum value;
+ *
+ * @interface BarClass : NSObject
+ * @property (nonatomic) enum Foo_Enum value;
+ * - (void)bazMethod:(enum Foo_Enum):value;
+ * @end
**/
#define GPB_ENUM_FWD_DECLARE(X) enum X : int32_t