// it references will not be garbage collected, so programs must keep
// a separate, correctly typed pointer to the underlying data.
//
// Deprecated: Use unsafe.Slice or unsafe.SliceData instead.
type SliceHeader struct {
	Data uintptr
	Len  int
	Cap  int
}

func typesMustMatch(what string, t1, t2 Type) {
	if t1 != t2 {

		{"unsafe.Pointer", ValueOf(unsafePtr), unsafePtr},
		{"function", ValueOf(fn), **(**unsafe.Pointer)(unsafe.Pointer(&fn))},
		{"slice", ValueOf(slice), unsafe.Pointer(unsafe.SliceData(slice))},
		{"string", ValueOf(s), unsafe.Pointer(unsafe.StringData(s))},
	}

	for _, tc := range tests {
		tc := tc
		t.Run(tc.name, func(t *testing.T) {