Bug 81196 Can't search for References, ... to an ITypeParameter [search]
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/actions/WorkingSetFindAction.java
fAction= action;
		setImageDescriptor(action.getImageDescriptor());
		setToolTipText(action.getToolTipText());
		PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.WORKING_SET_FIND_ACTION);
	}
	/**
	 * Note: This constructor is for internal use only. Clients should not call this constructor.
	 */
	public WorkingSetFindAction(JavaEditor editor, FindAction action, String workingSetName) {
		super(editor, workingSetName, null);
		Assert.isNotNull(action);
		fAction= action;
		setImageDescriptor(action.getImageDescriptor());
		setToolTipText(action.getToolTipText());
		PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.WORKING_SET_FIND_ACTION);
	}
	public void run(IJavaElement element) {
		fAction.run(element);
	}
	boolean canOperateOn(IJavaElement element) {
		return fAction.canOperateOn(element);
	}
	int getLimitTo() {
		return -1;
	}
	String getOperationUnavailableMessage() {
		return fAction.getOperationUnavailableMessage();
	}
}