Ev2 shims: Make sure we've got the required callbacks.
Ev2 shims: Make sure we've got the required callbacks.

* subversion/libsvn_delta/compat.c
  (svn_editor__insert_shims): Add a few assertions.

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