Switch FSFS index.c internal functions to using two pools.
Switch FSFS index.c internal functions to using two pools.

Even though the callers will eventually pass the same pool to both
parameters, this still gives better readability / documentation and
is consistent with what we do elsewhere in this module.

* subversion/libsvn_fs_fs/index.c
  (get_l2p_header_body): Have two pool parameters now.  Writing to the
                         cache needs only a temporary pool.
  (get_l2p_page_info): Update caller.
  (get_l2p_header): Add SCRATCH_POOL parameter as we can now pass it
                    through to a sub-function.
  (svn_fs_fs__l2p_get_max_ids): Update caller.
  (get_p2l_header): Have two pool parameters now.  Writing to the cache
                    needs only a temporary pool.
  (get_p2l_page_info): Update caller.
  (get_p2l_entry_from_cached_page): Have two pool parameters now.  Only
                                    the returned object needs to be
                                    allocated in the RESULT_POOL.
  (p2l_entry_lookup_func,
   p2l_get_max_offset): Update callers.

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1626886 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion