Bug 124620 Referenced Parameter icon should be invalid if the parameter in library is deleted
Description: Referenced parameter icon should be invalid if the source parameter in library is deleted. Steps to reproduce: 1.Create a library. Insert a report scalar parameter. 2.Create a report, use the above library. In the library explorer, pull the parameter to the data explorer view of report. 3.Open the library file, delete the parameter. Then reopen the report design file, the icon of parameter seems nothing happened. But if those operations happened in dataset, the icon of dataset in the report will be invalid. It is acceptable. Expected Result: The icon of referenced parameter should be invalid.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/DesignElement.java
import org.eclipse.birt.report.model.metadata.ElementPropertyDefn;
import org.eclipse.birt.report.model.metadata.ElementRefPropertyType;
import org.eclipse.birt.report.model.metadata.ElementRefValue;
import org.eclipse.birt.report.model.metadata.MetaDataDictionary;
import org.eclipse.birt.report.model.metadata.PropertyDefn;
import org.eclipse.birt.report.model.metadata.PropertyType;
import org.eclipse.birt.report.model.metadata.SlotDefn;
import org.eclipse.birt.report.model.metadata.StructRefPropertyType;
import org.eclipse.birt.report.model.metadata.StructRefValue;
import org.eclipse.birt.report.model.util.ContentIterator;
import org.eclipse.birt.report.model.util.ModelUtil;
import org.eclipse.birt.report.model.validators.ValidationExecutor;
/**
 * Base class for all design elements in BIRT. This class provides a number of
 * basic services:
 * <p>
 * <ul>
 * <li>Meta-data</li>
 * <li>Styles</li>
 * <li>Inheritance</li>
 * <li>Property management</li>
 * <li>Element name</li>
 * <li>Containment</li>
 * <li>Change notification</li>
 * <li>Visitor</li>
 * <li>API handle</li>
 * <li>Semantic state</li>
 * </ul>
 * <p>
 * The descriptions that follow describe the major operations on this class. All