Fixed #74862: Unable to clone instance when private __clone defined

Even though __clone was implemented as private and called only from
parent class, child extending class instance could

Fixed #74862: Unable to clone instance when private __clone defined

Even though __clone was implemented as private and called only from
parent class, child extending class instance could not be cloned.

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RC manipulation cleanup 2

RC manipulation cleanup

Prevent reference-counting on persistent zvals (internal constants, default properties and constants of internal classes).
New macro ZVAL_COPY_OR_DUP() is used perform duplication, if necessary.

Prevent reference-counting on persistent zvals (internal constants, default properties and constants of internal classes).
New macro ZVAL_COPY_OR_DUP() is used perform duplication, if necessary.
This should eliminate related race-coditions in ZTS build and prevent reference-counting bugs after unclean shutdown.

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Encapsulate reference-counting primitives.
Prohibit direct update of GC_REFCOUNT(), GC_SET_REFCOUNT(), GC_ADDREF() and GC_DELREF() shoukf be instead.
Added mactros to validate reference-count

Encapsulate reference-counting primitives.
Prohibit direct update of GC_REFCOUNT(), GC_SET_REFCOUNT(), GC_ADDREF() and GC_DELREF() shoukf be instead.
Added mactros to validate reference-counting (disabled for now).
These macros are going to be used to eliminate race-condintions during reference-counting on data shared between threads.

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Removed useless reallocations

Fixed signed/unsigned comparisons

Avoid HashTable allocations for empty arrays (using zend_empty_array).

Made run_time_cache to keep "offset" to dynamic properties Buckets (instead of index).

Use run-time cache to keep position of dynamic properties in HashTable to access them without hash lookup.

Make assertions in DO_ICALL and CALL_TRAMPOLINE to be consistent with DO_FCALL.

Revert "Allow internal functions to return values by reference (this was disabled in implementation of DO_ICALL, but enabled in DO_FCALL)."

This reverts commit da781a5ac2cb9d2f983ef9fe070900

Revert "Allow internal functions to return values by reference (this was disabled in implementation of DO_ICALL, but enabled in DO_FCALL)."

This reverts commit da781a5ac2cb9d2f983ef9fe070900664db12c67.

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Allow internal functions to return values by reference (this was disabled in implementation of DO_ICALL, but enabled in DO_FCALL).
However, don't require internal functions returning by reference

Allow internal functions to return values by reference (this was disabled in implementation of DO_ICALL, but enabled in DO_FCALL).
However, don't require internal functions returning by reference to return a reference.
Mark unserialize() as returning by reference and remove unwrap_reference hack, to allow proper returning of self referenced arrays using a reference.
Currently unserialize() is the only internal function that may return a reference.

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Always use IS_CONSTANT_AST (IS_CONSTANT is removed).

Use zval_ptr_dtor_nogc() in places where circular zvals are not possible

Changed the way VM accesses constant operands in 64-bit builds.

Refactored array creation API. array_init() and array_init_size() are converted into macros calling zend_new_array(). They are not functions anymore and don't return any values.

Property access micro-optimization. (ZEND_WRONG_PROPERTY_OFFSET and ZEND_DYNAMIC_PROPERTY_OFFSET are hidden, use one comparison instead of two on fast paths. "Negative" offsets are reserved for futur

Property access micro-optimization. (ZEND_WRONG_PROPERTY_OFFSET and ZEND_DYNAMIC_PROPERTY_OFFSET are hidden, use one comparison instead of two on fast paths. "Negative" offsets are reserved for future optimizations).

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Fixed attempt to free invalid structure (result of ROPE_INIT is not a zval)

Req #74963 (Improved error message on fetching property of non-object)

Req #74963 (Improved error message on fetching property of non-object)

Separate the fast-patch

Don't reuse compare_function operands

If the same zval is used for the result and one operand, then the
function thinks it is responsible for freeing the value in case of
a type conv

Don't reuse compare_function operands

If the same zval is used for the result and one operand, then the
function thinks it is responsible for freeing the value in case of
a type conversion.

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gc_check_possible_root() may throw exception.

Separate ISSET_ISEMPTY_CV/UNSET_CV from ISSET_ISEMPTY_VAR/UNSET_VAR