code: @SuppressWarnings("static-method")
  	protected Boolean _generate(XTypeLiteral expression, XExpression parentExpression, XtendExecutable feature,
  			InlineAnnotationTreeAppendable output) {
  		output.appendTypeConstant(expression.getType());
  		return Boolean.TRUE;
  	}
docs: Append the inline code for the given XTypeLiteral.
  
  @param expression the expression of the operation.
  @param parentExpression is the expression that contains this one, or {@code null} if the current expression is
  the root expression.
  @param feature the feature that contains the expression.
  @param output the output.
  @return {@code true} if a text was appended.