*foo.txt*      We need this because otherwise we don't get link targets      *foo*

CONTENTS                                                          *foo-contents*


1. A heading                                                               |foo-a-heading|
2. An overlength heading when I really should have chose something shorter  |foo-an-overlength-heading-when-i-really-should-have-chose-something-shorter|

A HEADING                                                        *foo-a-heading*

A subheading ~

AN OVERLENGTH HEADING WHEN I REALLY SHOULD HAVE CHOSE SOMETHING SHORTER *foo-an-overlength-heading-when-i-really-should-have-chose-something-shorter*

Note that in order for that last one to be shown as a heading in Vim, we
can't allow the usual hard-wrapping rules to apply.