Bug 213504 [Markers] Problems View no longer supports dragging into the Editor Area
I20071218-0800. You used to be able to drag an error into the Editor Area in order to open the associated file. I commonly use the DnD gesture to open a 'problem' but it appears that this isn't working in the new version...
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/ExtendedMarkersView.java
for (int i = 0; i < fields.length; i++) {
				if (cachedValues[i] == fields[i].getValue(item))
					continue;
				return false;
			}
			return true;
		}
	}
	private static int instanceCount = 0;
	private static final String TAG_GENERATOR = "markerContentGenerator"; 
	private static final String TAG_HORIZONTAL_POSITION = "horizontalPosition"; 
	private static final String TAG_VERTICAL_POSITION = "verticalPosition"; 
	private static final String MARKER_FIELD = "MARKER_FIELD"; 
	private static final String TAG_EXPANDED = "expanded"; 
	private static final String TAG_CATEGORY = "category"; 
	private static final String TAG_PART_NAME = "partName"; 
	private static final String TAG_COLUMN_WIDTHS = "columnWidths"; 
	static {
		Platform.getAdapterManager().registerAdapters(new IAdapterFactory() {
			/*
			 * (non-Javadoc)
			 * 
			 * @see org.eclipse.core.runtime.IAdapterFactory#getAdapter(java.lang.Object,
			 *      java.lang.Class)
			 */
			public Object getAdapter(Object adaptableObject, Class adapterType) {
				if (adapterType == IMarker.class
						&& adaptableObject instanceof MarkerEntry)
					return ((MarkerEntry) adaptableObject).getMarker();
				return null;