Issues error
	// Err is the possible error that was encounter during type checking.
	Err error
}

// TypeCheckingResults is a collection of TypeCheckingResult
type TypeCheckingResults []*TypeCheckingResult

func (rs TypeCheckingResults) String() string {
	var messages []string
	for _, r := range rs {
		message := r.String()
		if message != "" {
			messages = append(messages, message)