Fix registration of internal readonly child classes (#15459)

Currently, internal classes are registered with the following code:

INIT_CLASS_ENTRY(ce, "InternalClass", class_Internal

Fix registration of internal readonly child classes (#15459)

Currently, internal classes are registered with the following code:

INIT_CLASS_ENTRY(ce, "InternalClass", class_InternalClass_methods);
class_entry = zend_register_internal_class_ex(&ce, NULL);
class_entry->ce_flags |= ...;

This has worked well so far, except if InternalClass is readonly. It is because some inheritance checks are run by zend_register_internal_class_ex before ZEND_ACC_READONLY_CLASS is added to ce_flags.

The issue is fixed by adding a zend_register_internal_class_with_flags() zend API function that stubs can use from now on. This function makes sure to add the flags before running any checks. Since the new API is not available in lower PHP versions, gen_stub.php has to keep support for the existing API for PHP 8.3 and below.

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Do not generate frameless info items when func info generation is disabled

While here, I fixed newlines around arginfo and function entry generation. Previously, newlines were repeated.

Typed constants in Intl extenstion (#12360)

Revert "Merge branch 'PHP-8.2'"

This reverts commit 45a3f178dc226b69f5d72f10285bc2ad139b2c1c, reversing
changes made to b2a54bc6af4bf645b5bb2601621c12b31bfbff0c.

Merge branch 'PHP-8.2'

* PHP-8.2:
Fix GH-9967 Add support for generating custom function, class const, and property attributes in stubs

Closes GH-10170

Declare ext/intl constants in stubs - part 10 (#9280)

Fix GH-7939: Cannot unserialize IntlTimeZone objects

As it is now, `IntlTimeZone`, `IntlCalendar` and `IntlDateFormatter`
and some other intl class instances can be serialized, but the

Fix GH-7939: Cannot unserialize IntlTimeZone objects

As it is now, `IntlTimeZone`, `IntlCalendar` and `IntlDateFormatter`
and some other intl class instances can be serialized, but the
representation is meaningless, and unserialization yields uninitialized/
unusable objects. To prevent users from noticing this too late, we deny
serialization of such objects in the first place.

Closes GH-7945.

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Add explicit IntlPartsIterator::getRuleStatus() method

Rather than doing a magic forward, explicitly add a forwarding
method. This must be the most frivolous use of get_method I've
e

Add explicit IntlPartsIterator::getRuleStatus() method

Rather than doing a magic forward, explicitly add a forwarding
method. This must be the most frivolous use of get_method I've
ever seen.

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Declare tentative return types for ext/intl (#6986)

Improve class entry generation

Related to GH-6701

Generate ext/intl class entries from stubs

Closes GH-6670