Bug 173902 remove EXPERIMENTAL markings from 3.3 IDE Undo API
Need to remove the EXPERIMENTAL javadoc from the new API I introduced in 3.3. See org.eclipse.ui.ide.undo org.eclipse.jface.fieldassist
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/ide/undo/AbstractResourcesOperation.java
}
		if (!resourcesExist()) {
			markInvalid();
			return getErrorStatus(UndoMessages.AbstractResourcesOperation_ResourcesDoNotExist);
		}
		
		
		if (!quietCompute) {
			ReadOnlyStateChecker checker = new ReadOnlyStateChecker(
					getShell(null),
					IDEWorkbenchMessages.DeleteResourceAction_title1,
					IDEWorkbenchMessages.DeleteResourceAction_readOnlyQuestion);
			checker.setIgnoreLinkedResources(true);
			IResource[] approvedResources = checker
					.checkReadOnlyResources(resources);
			if (approvedResources.length == 0) {
				
				return Status.CANCEL_STATUS;
			}
			
			setTargetResources(approvedResources);
		}
		return Status.OK_STATUS;
	}
	/**
	 * Set the array of resource descriptions describing resources to be
	 * restored when undoing or redoing this operation.
	 * 
	 * @param descriptions
	 *            the array of resource descriptions