Add new function the_home_url()

[miyauchi]

I am thinking theme should not have echo.
It enables <?php the_home_url() ?> so it is friendly for the theme designer.

[noisysocks]

Hey @miyauchi, thanks for the suggestion and for the patch! This was discussed during a triage session (see Slack link above) and it was decided that we don't want to add this new API, because:

• the_{thing} functions are for outputting big sections of HTML e.g. in a template, not strings like the one returned by home_url.
• The naming convention for these functions is that there is the_{thing} and get_the_{thing}, but adding this would make it so that there is the_{thing} and {thing}.
• Themes don't need this very often.

I'm going to close this out as wontfix for now.