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.tests/test/org/eclipse/birt/report/model/api/GroupElementHandleTest.java
{
		DesignElement element = null;
		public FakeElementHandle( ReportDesign design, DesignElement element )
		{
			super( design );
			this.element = element;
		}
		/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.birt.report.model.api.DesignElementHandle#getElement()
		 */
		public DesignElement getElement( )
		{
			return this.element;
		}
	}
	static class MockupElementDefn extends ElementDefn