const os.kindOpenFile

4 uses

	os (current package)
		file_unix.go#L152: 	kindOpenFile
		file_unix.go#L178: 	pollable := kind == kindOpenFile || kind == kindPipe || kind == kindNonBlock
		file_unix.go#L183: 	if kind == kindOpenFile {
		file_unix.go#L296: 	kind := kindOpenFile