Bug 130495 Get rid of SessionHandleAdapter
Now, we use SessionHandleAdapter to keep current active report deisng. That's a bad practive for editor swith and rebuild will cuase lots of problmes. Need find way to replace it.
UI/org.eclipse.birt.report.designer.ui.editors.schematic/src/org/eclipse/birt/report/designer/ui/editors/pages/ReportXMLSourceEditorFormPage.java
return ( (ErrorDetail) element ).getLineNo( );
			}
		}
		return 0;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.forms.editor.IFormPage#getManagedForm()
	 */
	public IManagedForm getManagedForm( )
	{
		return null;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.forms.editor.IFormPage#setActive(boolean)
	 */
	public void setActive( boolean active )
	{
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.forms.editor.IFormPage#isActive()
	 */
	public boolean isActive( )
	{
		return false;