texi2any: warning: ignoring splitting for format Info
index_split.texi:5: warning: for `Top', up in menu `Top' and up `(dir)' don't match
index_split.texi:23: warning: node `Top' is prev for `first' in menu but not in sectioning
index_split.texi:87: warning: node `node in section 3' is next for `section 3' in menu but not in sectioning
