bug#5809: 23.1.94; cross-reference by anchor yields in accurate position

[Juri Linkov]

> It's too bad that the simple solution of using a newline in the header
> line doesn't work without display-engine changes. Has anyone looked
> into what changes to the display engine would be needed to fix that?

Looking over the header-line implementation in the display-engine,
the header-line is treated like the mode-line at the top of the buffer.
And newlines are disallowed in the mode-line.

-- 
Juri Linkov
http://www.jurta.org/emacs/