Bug 186940 Style name in theme cannot be identify by auto when reopen the library[01]
Description: Style name in theme cannot be identify by auto when reopen the library[01] Step: 1.Open a library and add a theme 2.New a style on the theme and use the default name that is "NewStyle" 3.Save the library, close it and reopen it again. 4.New another style on the same theme Actual result: The default style name on second times is also "NewStyle" Exception result: The default style name on second times is "NewStyle1"
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/command/NameCommand.java
if ( propDefn == null )
				throw new NameException( element, name,
						NameException.DESIGN_EXCEPTION_NAME_FORBIDDEN );
			try
			{
				name = (String) propDefn.validateValue( module, name );
			}
			catch ( PropertyValueException e )
			{
				throw new NameException( element, name,
						NameException.DESIGN_EXCEPTION_INVALID_NAME );
			}
			if ( !isNameValidInContext( name ) )
				throw new NameException( element, name,
						NameException.DESIGN_EXCEPTION_DUPLICATE );
			
			if ( metaData.getNameOption( ) == MetaDataConstants.NO_NAME )
				throw new NameException( element, name,
						NameException.DESIGN_EXCEPTION_NAME_FORBIDDEN );
			
			
			
			if ( !element.isManagedByNameSpace( ) )
			{
				return;
			}
			
			
			
			DesignElement existedElement = new NameExecutor( element )