const internal/types/errors.TooNew

4 uses

	internal/types/errors (current package)
		code_string.go#L157: 	_ = x[TooNew-151]
		codes.go#L1481: 	TooNew

	go/types
		check.go#L384: 		check.errorf(files[0], TooNew, "package requires newer Go version %v (application built with %v)",
		check.go#L415: 				check.errorf(file.Name, TooNew, "file requires newer Go version %v (application built with %v)", fileVersion, go_current)