Revision 1661179

Start using our move information in our commit processing to avoid
unneeded revision gaps when committing simple moves.

This handles the simple case where (during commit) we know that a
node didn't change in a specific revision range. As this is a
client side fixup this can't resolve the hard cases, but at
least it is safe and helps removing many gaps.

* subversion/include/private/svn_wc_private.h
  (svn_wc__node_get_deleted_ancestor): Remove unneeded function.

* subversion/libsvn_client/commit.c
  (svn_client_commit6): Attempt to fix-up the copy-from revision of
    moved nodes, by fixing up the known safe cases. Trust that the
    delete_op_root is really the delete op_root.

* subversion/libsvn_wc/node.c
  (svn_wc__node_get_deleted_ancestor): Remove function.

* subversion/tests/cmdline/log_tests.py
  (log_revision_move_copy): Update test expectations. The client
    side commit is now smart enough to avoid the revision gap, for
    direct moves from BASE.