@ref in @multitable broken in Info output if split across lines

[Gavin Smith]

If makeinfo produces a cross-reference in a table in the Info output
and the text for the cross-reference is split across lines, then it is
not possible to follow the cross-reference. For example:

Chunk name                First definition point
--------------------------------------------------------------------------
<Check for more than      See *note Check-for-more-than-one-initial::.
one initial>
<Set up 'fields' array    See *note
with the data>            Set-up--code-fields--array-with-the-data::.
<Store the data for the   See *note
line in the 'Data'
Store-the-data-for-the-line-in-the--code-Data--array::.
array>

Here is a multitable with three lines with cross-references in the
second column. The cross-reference in the first line is followable,
but in lines 2 and 3 they are not. The cross-reference text for the
second row should be "*note
Set-up--code-fields--array-with-the-data::", but it gets the text from
the first column as well, leading the Info viewer to look for a node
called "with the data>
Set-up--code-fields--array-with-the-data".

This could be fixed if makeinfo always put the text for a
cross-reference on a single line in a multitable, although that would
break the column widths sometimes.

Test files are attached.

xref-in-multitable.info
Description: Binary data

xref-in-multitable.texi
Description: TeXInfo document