These are of course not the final API numbers, but let's make sure
they differ from the 7.4 branch for now.

Cf. <https://wiki.php.net/rfc/image2wbmp>.

Cf. <https://wiki.php.net/rfc/deprecate-png-jpeg-2wbmp>

Cf. <https://wiki.php.net/rfc/deprecate-and-remove-intl_idna_variant_2003>

Deprecated in PHP 7.2 as part of
https://wiki.php.net/rfc/deprecations_php_7_2.

Deprecated in PHP 7.2 as part of
https://wiki.php.net/rfc/deprecations_php_7_2.

This has been deprecated in PHP 7.2 as part of
https://wiki.php.net/rfc/deprecations_php_7_2.

Deprecated in PHP 7.2 as part of
https://wiki.php.net/rfc/deprecations_php_7_2.

This was deprecated in PHP 7.2 as part of
https://wiki.php.net/rfc/deprecations_php_7_2.

This was deprecated in PHP 7.2 as part of
https://wiki.php.net/rfc/deprecations_php_7_2.

This has been deprecated in PHP 7.2 as part of
https://wiki.php.net/rfc/deprecations_php_7_2.

These have been deprecated in PHP 7.3 as part of
https://wiki.php.net/rfc/deprecations_php_7_3.

These were deprecated in PHP 7.3 as part of
https://wiki.php.net/rfc/deprecations_php_7_3.

This is part of https://wiki.php.net/rfc/deprecations_php_7_3.

Deprecated in PHP 7.2 as part of
https://wiki.php.net/rfc/deprecations_php_7_2.

Deprecated in PHP 7.3 as part of
https://wiki.php.net/rfc/deprecations_php_7_3.

Deprecated in PHP 7.3 as part of
https://wiki.php.net/rfc/deprecations_php_7_3.

Sort of following up on super pages support earlier, here
we also detect page mappings possibly eligible to go to
super pages.

Callbacks are now always valid or not valid, there is no in-between.

There are probably some improvements we can do to the SPL
implementation now that __autoload() is gone. In particular having
EG(autoload_func) as a property zend function, rather than a simple
callback probably doesn't make sense.

* PHP-7.3:
  Fix #77546 iptcembed broken function

* PHP-7.3:
  Fix #77546 iptcembed broken function

* PHP-7.2:
  Fix bug 76596: phpdbg supports display_errors=stderr

* PHP-7.3:
  Fix bug 76596: phpdbg supports display_errors=stderr

* PHP-7.4:
  Fix bug 76596: phpdbg supports display_errors=stderr

* PHP-7.4:
  Don't silence fatal errors with @