Allow wp_enqueue_script() after wp_head()

[scribu]

Say you have this code:

function my_template_tag() {
  // output some stuff here

  wp_enqueue_script('handle', ..., $in_footer = true);
}

It should just work, even if it's called after wp_head().

Currently, you have to do something like this:

function my_template_tag() {
  // output some stuff here

  add_action('wp_footer', 'my_template_tag_script');
}

function my_template_tag_script() {
  wp_register_script('handle', ...);
  wp_print_scripts('handle');
}

[archon810]

+1 for this.

Some discussion ​here, ​here, and ​here.

[TobiasBg]

huge +1

[sivel]

See #9346