Class describing modules.
Implementing ITranslationUnit and ICompoundTranslationUnit to provide abstraction in corresponding walker class.
Inheritance: NestedElementTranslationUnit, ITranslationUnit, ICompoundTranslationUnit
 /// <summary>
 /// Copy initializes a new instance of the <see cref="StatementTranslationUnit"/> class.
 /// </summary>
 /// <param name="other"></param>
 /// <remarks>
 /// For testability.
 /// </remarks>
 protected StatementTranslationUnit(StatementTranslationUnit other)
     : base(other)
 {
 }
 /// <summary>
 /// Copy initializes a new instance of the <see cref="StatementTranslationUnit"/> class.
 /// </summary>
 /// <param name="other"></param>
 /// <remarks>
 /// For testability.
 /// </remarks>
 protected StatementTranslationUnit(StatementTranslationUnit other)
     : base(other)
 {
 }