dom_xinclude_strip_fallback_references() now also takes into account
xi:include nodes children. This now subsumes all work done normally by
the old start/end node removal, so we can remove that code and start
using XML_PARSE_NOXINCNODE.

Closes GH-17878.

* PHP-8.3:
  Fix GH-17847: xinclude destroys live node

* PHP-8.4:
  Fix GH-17847: xinclude destroys live node

Apparently a copy and paste issue.

Closes GH-17881.

* PHP-8.3:
  Fix GH-17879: readfile_variation8-win32.phpt test conflict

* PHP-8.4:
  Fix GH-17879: readfile_variation8-win32.phpt test conflict

* PHP-8.4:
  Fix using Dom\Node with Dom\XPath callbacks

Create new sub directories for tests related to backtraces and for tests
related to `$this` being reserved in different places and not being usable or
reassignable.

Work towards GH-15631

when opcache is enabled.

close GH-17901

Add directories for tests relating to
- calling user functions (`call_user_func()` and `call_user_func_array()`)
- using `::class` to access class names
- null coalescing with `??`
- concatenation with `.`
- indirect function calls (e.g. by calling a variable with a function name)
- reporting of line numbers
- static variables in functions
- type casts

As well as organizing a couple of tests into existing sub directories along the
way

Work towards GH-15631

Closes GH-17903.

* PHP-8.3:
  Fix cycle leak in sqlite3 setAuthorizer()

* We need to clean the trampoline if the construction check fails
* Checking for an exception and then returning causes a leak on
  `collation`. Returning early is pointless anyway.

Closes GH-17904.

* PHP-8.4:
  Fix memory leaks in pdo_sqlite callback registration
  Fix cycle leak in sqlite3 setAuthorizer()

- Three of our gd tests could be skipped with a message about requiring
bundled GD, but those tests don't actually require bundled GD. We
update the messages to mention the specific functions that are
required.

- add SKIPIF stanzas for missing PNG support

The bundled libgd always has PNG support, but an external one may not.

- imagerotate() is always available

Following 59ec80c, the imagerotate() function is always available. We
may therefore remove its function_exists() checks without harm.

close GH-17894

skip if imagefttext() is not available

This test calls imagefttext(), which may not be available if libgd
was built without freetype support.

Closes GH-17910

This solely affects the builtin enum functions currently.

Given that these are stored in SHM, we cannot simply hardwire a pointer into the internal function runtime cache on NTS too, but have to use a MAP_PTR (like on ZTS).
Now, by design, the runtime cache of internal functions no longer is reset between requests, hence we need to store them explicitly as static runtime cache.

On NTS builds we cannot trivially move the pointers into CG(internal_run_time_cache) as they're directly stored on the individual functions (on ZTS we could simply iterate the static map_ptrs).
Hence, we have the choice between having opcache managing the internal run_time_cache for its preloaded functions itself or realloc CG(internal_run_time_cache) and iterate through all functions to assign the new address. We choose the latter for simplicity and initial speed.

See: laravel/framework#54754 (comment)

According to this comment, the default branch more actively receives
changes throuought the year than master. Hence, it makes more sense to
test the default branch.

* PHP-8.1:
  [skip ci] Use laravel default branch in community build

* PHP-8.2:
  [skip ci] Use laravel default branch in community build

* PHP-8.3:
  [skip ci] Use laravel default branch in community build

* PHP-8.4:
  [skip ci] Use laravel default branch in community build