JIT: Avoid too aggressive loop unrolling

This fixes tests/func/010.phpt failure with tracing JIT on ARM64.

move zend_vm_stack_new_page into header for sharing with fibers

Implement never return type

The never type can be used to indicate that a function never
returns, for example because it always unwinds.

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

Implement never return type

The never type can be used to indicate that a function never
returns, for example because it always unwinds.

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

Closes GH-6761.

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Fix spelling and grammar mistakes

This PR corrects misspellings identified by the check-spelling action.

The misspellings have been reported at jsoref@b6ba3e2#commitcomment-48946465

Fix spelling and grammar mistakes

This PR corrects misspellings identified by the check-spelling action.

The misspellings have been reported at jsoref@b6ba3e2#commitcomment-48946465

The action reports that the changes in this PR would make it happy: jsoref@602417c

Closes GH-6822.

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Drop unneessary if branch and adjust arg_num type

This if branch seems to be a remain of when certain type errors where E_WARNINGs, something which isn't the case since PHP 8.0.

Replace zend_bool uses with bool

We're starting to see a mix between uses of zend_bool and bool.
Replace all usages with the standard bool type everywhere.

Of course, zend_bool

Replace zend_bool uses with bool

We're starting to see a mix between uses of zend_bool and bool.
Replace all usages with the standard bool type everywhere.

Of course, zend_bool is retained as an alias.

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Change calling convention of zval_update_constant[_ex]() to fastcall.

Fix prototype of get_active_function_or_method_name()

JIT for ASSIGN_OBJ

Fixed 32-bit JIT

Improve error messages mentioning parameters instead of arguments

Closes GH-5999

Remove unnecessary cache_slot arguments

zend_verify_type_error_common() no longer needs the cache_slot,
so drop it there and from all users.

Improve type declarations for Zend APIs

Voidification of Zend API which always succeeded
Use bool argument types instead of int for boolean arguments
Use bool return type for functio

Improve type declarations for Zend APIs

Voidification of Zend API which always succeeded
Use bool argument types instead of int for boolean arguments
Use bool return type for functions which return true/false (1/0)
Use zend_result return type for functions which return SUCCESS/FAILURE as they don't follow normal boolean semantics

Closes GH-6002

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Export and reuse zend_is_valid_class_name API

Unserialization does the same check as zend_lookup_class, so let's
share the same optimized implementation.

Implement named parameters

From an engine perspective, named parameters mainly add three
concepts:

* The SEND_* opcodes now accept a CONST op2, which is the
argument nam

Implement named parameters

From an engine perspective, named parameters mainly add three
concepts:

* The SEND_* opcodes now accept a CONST op2, which is the
argument name. For now, it is looked up by linear scan and
runtime cached.
* This may leave UNDEF arguments on the stack. To avoid having
to deal with them in other places, a CHECK_UNDEF_ARGS opcode
is used to either replace them with defaults, or error.
* For variadic functions, EX(extra_named_params) are collected
and need to be freed based on ZEND_CALL_HAS_EXTRA_NAMED_PARAMS.

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

Closes GH-5357.

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Remove type argument from zend_get_zval_ptr

As pointed out by Levi, this is unused, and we already changed
the signature of this function for PHP 8.

JIT support for undefined index/offset handling

Reuse warning function

Cleanup SPL autoload implementation

Replace EG(autoload_func) with a C level zend_autoload hook.
This avoids having to do one indirection through PHP function
calls. The need for EG(

Cleanup SPL autoload implementation

Replace EG(autoload_func) with a C level zend_autoload hook.
This avoids having to do one indirection through PHP function
calls. The need for EG(autoload_func) was a leftover from the
__autoload() implementation.

Additionally, drop special-casing of spl_autoload(), and instead
register it just like any other autoloading function. This fixes
bug #71236 as a side-effect.

Finally, change spl_autoload_functions() to always return an array.
The distinction between false and an empty array no longer makes
sense here.

Closes GH-5696.

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micro-optimization

Improve error message for deprecated methods

zend_timeout is not a signal handler function

The 'int dummy' parameter to this function makes it appear that it was intended as a
signal handler, but it is not being used as such. So re

zend_timeout is not a signal handler function

The 'int dummy' parameter to this function makes it appear that it was intended as a
signal handler, but it is not being used as such. So remove the redundant parameter.

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Make type error messages more consistent

Closes GH-5092

Add static return type

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

The "static" type is represented as MAY_BE_STATIC, rather than
a class type like "self" and "parent", as

Add static return type

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

The "static" type is represented as MAY_BE_STATIC, rather than
a class type like "self" and "parent", as it has special
resolution semantics, and cannot be cached in the runtime cache.

Closes GH-5062.

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Basic JIT support for verify return