Implement "support doc comments for internal classes and functions" (#13266)

Fixes #13130

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.

Implement stackless internal function calls

Co-authored-by: Dmitry Stogov <dmitry@zend.com>

Closes GH-12461

Make return type of trigger_error() and user_error() true (#13169)

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

Fix gc_status type info

Closes GH-11722

Revert "Merge branch 'PHP-8.2'"

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

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

Add four extra fields to gc_status() (#9336)

- running: true if garbage collection is currently running
- protected: true if the garbage collector is protected and root
additions a

Add four extra fields to gc_status() (#9336)

- running: true if garbage collection is currently running
- protected: true if the garbage collector is protected and root
additions are forbidden
- full: true if the garbage collector buffer size exceeds GC_MAX_BUF_SIZE
- buffer_size: current garbage collector buffer size

Documentation for existing fields:

- runs: the number of times the garbage collector has been run
- collected: the number of objects collected
- threshold: the number of roots in the buffer which will trigger
garbage collection
- roots: the current number of roots in the buffer

Updated manual example output:

array(8) {
["running"]=>
bool(false)
["protected"]=>
bool(false)
["full"]=>
bool(false)
["runs"]=>
int(5)
["collected"]=>
int(100002)
["threshold"]=>
int(50001)
["buffer_size"]=>
int(131072)
["roots"]=>
int(0)
}

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Fix RC debug of stub attribute (#9082)

Allow for arbitrary (class) attributes in stubs

This can be easily extended to other types of attributes.

Closes #8839.

Support the `#[\AllowDynamicProperties]` attribute in stubs (#8776)

* Support the `#[\AllowDynamicProperties]` attribute in stubs

* Use `#[\AllowDynamicProperties]` attribute in stu

Support the `#[\AllowDynamicProperties]` attribute in stubs (#8776)

* Support the `#[\AllowDynamicProperties]` attribute in stubs

* Use `#[\AllowDynamicProperties]` attribute in stubs

* Disallow applying both `@strict-properties` and `#[\AllowDynamicProperties]`

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Declare true return types (#8759)

Allow internal functions to declare if they support compile-time evaluation, add functions. (#7780)

https://wiki.php.net/rfc/strtolower-ascii means that these functions no longer
depend

Allow internal functions to declare if they support compile-time evaluation, add functions. (#7780)

https://wiki.php.net/rfc/strtolower-ascii means that these functions no longer
depend on the current locale in php 8.2. Before that, this was unsafe to
evaluate at compile time.

Followup to GH-7506

Add strcmp/strcasecmp/strtolower/strtoupper functions

Add bin2hex/hex2bin and related functions

Update test of garbage collection using strtolower to use something else to create a refcounted string

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Add support for generating MAY_BE_ARRAY_OF_REF func info flag (#7416)

Fix callable and iterable handling

Generate Zend, ext/spl and ext/json optimizer func info from stubs

Closes GH-7397

Add support for generating optimizer function info from stubs (#7367)

Declare the $value param of define() as mixed

Revert "Fix bug #24214 implement access to skip_last in user API for backtrace"

This reverts commit a5cef84de8473088ad549e3724127c81b907c49d.

Fix bug #24214 implement access to skip_last in user API for backtrace

Implement enums

RFC: https://wiki.php.net/rfc/enumerations

Co-authored-by: Nikita Popov <nikita.ppv@gmail.com>

Closes GH-6489.

Generate class entries from stubs for com, standard, xmlreader, xmlwriter, xsl, zip, Zend

Closes GH-6706

Improve class entry generation

Related to GH-6701

Generate zend class entries based on stubs

Closes GH-6685