public BugInstance addField(FieldAnnotation fieldAnnotation) { add(fieldAnnotation);
public BugInstance addField(String className, String fieldName, String fieldSig, boolean isStatic) { addField(new FieldAnnotation(className, fieldName, fieldSig, isStatic));
	public BugInstance addField(FieldAnnotation fieldAnnotation) {		add(fieldAnnotation);		return this;	}