Len    uint8
	Family uint8
	Index  uint16
	Type   uint8
	Nlen   uint8
	Alen   uint8
	Slen   uint8
	Data   [24]int8
}

type RawSockaddr struct {
	Len    uint8
	Family uint8
	Data   [14]int8
}

type RawSockaddrAny struct {
	Addr RawSockaddr
	Pad  [92]int8
}

type _Socklen uint32

type Linger struct {
	Onoff  int32
	Linger int32
}

	Len    uint8
	Family uint8
	Index  uint16
	Type   uint8
	Nlen   uint8
	Alen   uint8
	Slen   uint8
	Data   [24]int8
}

type RawSockaddr struct {
	Len    uint8
	Family uint8
	Data   [14]int8
}

type RawSockaddrAny struct {
	Addr RawSockaddr
	Pad  [92]int8
}

type _Socklen uint32

type Linger struct {
	Onoff  int32
	Linger int32
}

	Family uint16
	Data   [14]uint8
}

type RawSockaddrAny struct {
	Addr RawSockaddr
	Pad  [96]uint8
}

type _Socklen uint32

type Linger struct {
	Onoff  int32
	Linger int32
}

type Iovec struct {
	Base *byte
	Len  uint64
}

type IPMreq struct {
	Multiaddr [4]byte /* in_addr */
	Interface [4]byte /* in_addr */
}

type IPMreqn struct {

        _ [P * *T]struct{}
        _ [P * T]struct{}
        _ [P(*T)]struct{}
        _ [P(**T)]struct{}
        _ [P * T - T]struct{}
        _ [P*T-T, /* ERROR "unexpected comma" */ ]struct{}
        _ [10, /* ERROR "unexpected comma" */ ]struct{}

        _[P *struct{}|int] struct{}
        _[P *struct{}|int|string] struct{}

		"var a struct{ E[int] }; type E[P any] struct{}; func (*E[P]) f() {}":  {},
		"var a struct{ *E[int] }; type E[P any] struct{}; func (*E[P]) f() {}": {{"f", []int{0, 0}, true}},

		// collisions
		"var a struct{ E1; *E2 }; type ( E1 interface{ f() }; E2 struct{ f int })":            {},
		"var a struct{ E1; *E2 }; type ( E1 struct{ f int }; E2 struct{} ); func (E2) f() {}": {},

		// recursive generic types; see go.dev/issue/52715

	var _ func() int

	type _ struct{}
	type _ *struct{}
	type _ []struct{}
	type _ map[string]struct{}
	type _ chan struct{}
	type _ func() struct{}

	type _ interface{}
	type _ *interface{}
	type _ []interface{}
	type _ map[string]interface{}
	type _ chan interface{}
	type _ func() interface{}

	var _ struct{}
	var _ *struct{}
	var _ []struct{}
	var _ map[string]struct{}

		Stackdriver        struct{} `json:"stackdriver"`
		EnvoyExtAuthzHTTP  struct{} `json:"envoyExtAuthzHttp"`
		EnvoyExtAuthzGrpc  struct{} `json:"envoyExtAuthzGrpc"`
		Zipkin             struct{} `json:"zipkin"`
		Lightstep          struct{} `json:"lightstep"`
		Datadog            struct{} `json:"datadog"`
		Opencensus         struct{} `json:"opencensus"`
		Skywalking         struct{} `json:"skywalking"`

	SYS_FHSTATFS                 = 558 // { int fhstatfs(const struct fhandle *u_fhp, struct statfs *buf); }
	SYS_MKNODAT                  = 559 // { int mknodat(int fd, char *path, mode_t mode, dev_t dev); }
	SYS_KEVENT                   = 560 // { int kevent(int fd, struct kevent *changelist, int nchanges, struct kevent *eventlist, int nevents, const struct timespec *timeout); }

	SYS_FHSTATFS                 = 558 // { int fhstatfs(const struct fhandle *u_fhp, struct statfs *buf); }
	SYS_MKNODAT                  = 559 // { int mknodat(int fd, char *path, mode_t mode, dev_t dev); }
	SYS_KEVENT                   = 560 // { int kevent(int fd, struct kevent *changelist, int nchanges, struct kevent *eventlist, int nevents, const struct timespec *timeout); }

	_O_CLOEXEC  = 0x80000

	_AF_UNIX    = 0x1
	_SOCK_DGRAM = 0x2
)

type fpreg struct {
	significand [4]uint16
	exponent    uint16
}

type fpxreg struct {
	significand [4]uint16
	exponent    uint16
	padding     [3]uint16
}

type xmmreg struct {
	element [4]uint32
}

type fpstate struct {
	cw        uint32
	sw        uint32
	tag       uint32
	ipoff     uint32