Ev2 shims: Pass the checksum of the resulting file through the close_file() interface.
Ev2 shims: Pass the checksum of the resulting file through the close_file()
interface.

Current number of Ev2 test failures: 15

* subversion/libsvn_delta/compat.c
  (operation): Add new checksum member.
  (build): Accept a checksum, and store it in the operation.
  (add_directory_cb, add_symlink_cb, add_absent_cb, set_props_cb, delete_cb,
   copy_cb): Update callers.
  (add_file_cb, set_text_cb): Make sure we have the correct checksum and store
    it for use with close_file().
  (drive_tree): Pass the checksum to close_file().

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion