Add an initializer clause to the initializer list. Depending on how the AST is created the
	 * initializer may be <code>null</code>. A <code>null</code> initializer will not be returned
	 * by {@link #getInitializers()}, however it contributes to the actual element count (#getSize()).
Add an initializer clause to the initializer list. Depending on how the AST is created the
	 * initializer may be <code>null</code>. A <code>null</code> initializer will not be returned
	 * by {@link #getInitializers()}, however it contributes to the actual element count (#getSize()). | IASTInitializerList.java