A possible cookie polution

I won't have time to check this, sorry, so I'm only reporting here a _possible_ bug.

I see the following code in 'misc/drupal.js':

if (Drupal.jsEnabled) {
  ...
  // 'js enabled' cookie
  document.cookie = 'has_js=1';
  ...
}

And I think this should be changed to:

  document.cookie = 'has_js=1; path=/';

Or else a cookie created at 'node/1234' won't be seen at 'taxonomy/term/5'. And we will have a "cookie polution": lot's of cookies, especially if path_auto is used to creating 'folders'.

A related issue:

I see the following in 'comment.module':

setcookie('comment_info_'. $field, $form_state['values'][$field], time() + 31536000);

And I wonder if the 'path' parameter should be used here.