Fix a few 64 -> 32 integer conversion warnings in FSX.
Fix a few 64 -> 32 integer conversion warnings in FSX.

* subversion/libsvn_fs_x/noderevs.c
  (binary_noderev_t): Use apr_size_t as string index.
  (svn_fs_x__read_noderevs_container): Update stream -> struct conversions.

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1575890 13f79535-47bb-0310-9956-ffa450edef68

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