After updating value handles for RAUW, check that no weak or tracking handles are still on the list.  This might happen if a CallbackVH created some new value handles for the old value when doing RAUW.  Barf if it occurs, since it is almost certainly a mistake.
After updating value handles for RAUW, check that no weak or tracking handles
are still on the list.  This might happen if a CallbackVH created some new value
handles for the old value when doing RAUW.  Barf if it occurs, since it is almost
certainly a mistake.


git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@109495 91177308-0d34-0410-b5e6-96231b3b80d8

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