check.err(at, code, check.sprintf(format, args...), true)
}
-func (check *Checker) versionErrorf(at poser, v version, format string, args ...interface{}) {
+func (check *Checker) versionErrorf(at poser, v goVersion, format string, args ...interface{}) {
msg := check.sprintf(format, args...)
msg = fmt.Sprintf("%s requires %s or later", msg, v)
check.err(at, UnsupportedFeature, msg, true)