Bug 296691 Change new Groups API to Virtual Resource API
If we decide that 'virtual' is the right naming for new resources concept, I will make the following changes. Add IResource#VIRTUAL flag to use in #create methods Add IResource#isVirtual indicating that a resource is virtual Remove IResource#isGroup Remove IFolder#createGroup
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/ide/undo/WorkspaceUndoUtil.java
private static ObjectUndoContext tasksUndoContext;
	private static ObjectUndoContext bookmarksUndoContext;
	/**
	 * Return the undo context that should be used for workspace-wide operations
	 * 
	 * @return the undo context suitable for workspace-level operations.
	 */
	public static IUndoContext getWorkspaceUndoContext() {
		return WorkbenchPlugin.getDefault().getOperationSupport()
				.getUndoContext();
	}