some are working some are not working.
for example,
i did
using System.Web.Security;
MembershipUser myObject = Membership.GetUser();
I'm using VS2010 and Project > Rescan Solution seems to do the trick, although it seems to take longer than normal. I suppose it's because it is rebuilding the entire cache, rather than selectively updating parts of it.
If you're using VsVim or other non-default keybinds, alt+P+S still does the trick.