func io/ioutil.TempFile

2 uses

	io/ioutil (current package)
		tempfile.go#L24: func TempFile(dir, pattern string) (f *os.File, err error) {

	golang.org/x/tools/go/packages
		golist.go#L1122: 		f, err := ioutil.TempFile(dir, fmt.Sprintf("*-%s", noSeparator))