bindgen-tests/tests/headers/bitfield_method_mangling.h - third_party/github.com/rust-lang/rust-bindgen - Git at Google

 typedef struct
 {
   unsigned int pad3: 24;
   unsigned int type: 8;
 } mach_msg_type_descriptor_t;
	typedef struct
	{
	unsigned int pad3: 24;
	unsigned int type: 8;
	} mach_msg_type_descriptor_t;