Bug 191168 [Regression]Exception occurs when resize masterpage in library
Description: Exception occurs when resize masterpage in library. Build number:2.2.0.v20070606-0630 Regression bug:187443 Steps to reproduce: 1. New a library. 2. Go to Master Page, resize the master page using the ruler. Expected result: 1. Layout works correctly. 2. No exception is thrown out. Error log: An unexpected internal exception occurred.Please see log for detail. Plug-in Provider:Eclipse.org Plug-in Name:BIRT Designer UI Plug-in ID:org.eclipse.birt.report.designer.ui Version:2.2.0.v20070606-0630 Error Code:Error.GUIException.invokedByUnexpectedException Error Message:org.eclipse.birt.report.designer.internal.lib.lalyout.LibraryReportDesignLayout
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/Module.java
if ( module instanceof ReportDesign )
		{
			ContainerSlot slot = module
					.getSlot( IReportDesignModel.TEMPLATE_PARAMETER_DEFINITION_SLOT );
			assert slot != null;
			for ( int i = slot.getCount( ) - 1; i >= 0; i-- )
			{
				TemplateParameterDefinition templateParam = (TemplateParameterDefinition) slot
						.getContent( i );
				if ( templateParam.getClientList( ).isEmpty( ) )
				{
					module
							.remove(
									templateParam,
									IReportDesignModel.TEMPLATE_PARAMETER_DEFINITION_SLOT );
					
					
					module.manageId( templateParam, false );
				}
			}
		}
		
		nameHelper.clear( );
	}
	/**
	 * Resolves element with the given element name and name space.
	 * <code>propDefn</code> gives the information that how to resolve the
	 * <code>elementName</code>.
	 *