hdf5_msb

Always restart H5C_evict_or_refresh_all_entries_in_page()'s scan of
the entries in a hash bucket after evicting tagged entries.  Evicting
tagged entries can can affect both entries before and after the current
entry in the bucket's linked list, so we cannot be sure that either
`entry_ptr` or `follow_ptr` is valid.

This stops the assertion (entry_ptr->page != page) ||
(entry_ptr->refreshed_in_tick == tick) from failing in the test
`testvfdswmr.sh many_small`.