const internal/types/errors.TooNew

4 uses

	internal/types/errors (current package)
		code_string.go#L158: 	_ = x[TooNew-151]
		codes.go#L1484: 	TooNew

	go/types
		check.go#L379: 		check.errorf(files[0], TooNew, "package requires newer Go version %v (application built with %v)",
		check.go#L410: 				check.errorf(file.Name, TooNew, "file requires newer Go version %v (application built with %v)", fileVersion, go_current)