Bug 153391 Some Options in Edit Parameter dialog haven't been saved.
Description: Some Options in Edit Parameter dialog haven't been saved. Steps to reproduce: 1. new a parameter, boolean type, tick AllowNUll and sort alphabetically... 2. Close the dialog and reopen it. 3. new a parameter, string, combo-box, tick AllowNull. 4. Close the dialog and reopen it. Expected result: Ticked options' status are saved Actual result: After reopen parameter dialog, options are unticked.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ParameterDialog.java
String type = null;
		if ( inputParameter.getControlType( ) == null )
		{
			type = DesignChoiceConstants.PARAM_CONTROL_TEXT_BOX;
		}
		else if ( DesignChoiceConstants.PARAM_CONTROL_LIST_BOX.equals( inputParameter.getControlType( ) ) )
		{
			if ( inputParameter.isMustMatch( ) )
			{
				type = PARAM_CONTROL_COMBO;
			}
			else
			{
				type = PARAM_CONTROL_LIST;
			}
		}
		else
		{
			type = inputParameter.getControlType( );
		}
		return type;
	}
	private String getSelectedDataType( )
	{
		String type = null;
		if ( StringUtil.isBlank( dataTypeChooser.getText( ) ) )
		{
			type = inputParameter.getDataType( );
		}
		else