Don't set ce for by-ref return type

For the case where we upgrade a prototype to a possible by-ref
return from an inheriting method.

Merge branch 'PHP-8.0' into PHP-8.1

* PHP-8.0:
Fix GH-8074: Wrong type inference of range() result

Preserve key/value type invariant in range() type inference

Don't set PACKED key type if no value type is set.

Fixes oss-fuzz 6718410667458560.

Fixed type inference that may cause JIT failure

PHP allows to override a method that returns non-reference with a method
that returns a reference. This mean that we cannot use prototypes

Fixed type inference that may cause JIT failure

PHP allows to override a method that returns non-reference with a method
that returns a reference. This mean that we cannot use prototypes to
predict return types of a child functions.

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Fix range() return type inference for undef operand

This results in a long range.

Mark private function as static

Generate optimizer func info from stubs for ext/standard - part 3 (#7426)

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

Generate optimizer func info from stubs for ext/standard - part 2 (#7414)

Merge branch 'PHP-8.0'

* PHP-8.0:
Fix a few func info

Avoid string copy in get_cfg_var()

basic_functions.c already has a macro for returning an ini
value to userland, so make use of it for get_cfg_var() as well,
after generalizing it to

Avoid string copy in get_cfg_var()

basic_functions.c already has a macro for returning an ini
value to userland, so make use of it for get_cfg_var() as well,
after generalizing it to not write to return_value in particular.

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Generate optimizer func info from stubs for ext/standard - part 1 (#7413)

Merge branch 'PHP-8.0'

* PHP-8.0:
Fix func info for str_replace() and str_ireplace()

Merge branch 'PHP-8.0'

* PHP-8.0:
Remove incorrect refcount info for addcslashes()

Generate optimizer func info from stubs for various extensions (#7409)

ext/hash, ext/iconv, ext/mbstring, ext/xml, ext/zlib

Generate optimizer func info from stubs for ext/gd and ext/pgsql (#7408)

Generate optimizer func info from stubs for ext/curl, ext/mysqli, ext/pcre (#7407)

Merge branch 'PHP-8.0'

* PHP-8.0:
imagecolorsforindex() cannot return false

Merge branch 'PHP-8.0'

* PHP-8.0:
Sync ext/mysqli optimizer func info entries with the stubs

Generate optimizer func info from stubs for ext/sodium (#7404)

Generate optimizer func info from stubs for ext/date (#7403)

Generate optimizer func info from stubs for a few extensions - part 2 (#7401)

ext/bcmath, ext/fileinfo, ext/filter, ext/gettext, ext/session

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)

Merge branch 'PHP-8.0'

* PHP-8.0:
Fix a few optimizer func info