// can't or won't be included in modules and therefore shouldn't be treated
// as existing for embedding.
func isBadEmbedName(name string) bool {
	if err := module.CheckFilePath(name); err != nil {
		return true
	}
	switch name {
	// Empty string should be impossible but make it bad.
	case "":
		return true
	// Version control directories won't be present in module.