Fix some ZTS issues and leaks

Fixed destruction of objects and iterators on unclean request shutdown and GC (few cases are still unfixed).
Now we destroy objects it two steps. At first - object properties of all objects and o

Fixed destruction of objects and iterators on unclean request shutdown and GC (few cases are still unfixed).
Now we destroy objects it two steps. At first - object properties of all objects and only then the objects their selves.

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Avoid unnecessry reallocations

Refactored data structures to keep zend_object* instead of a whole zval in some places

Fixed memory leak

Refactored IS_INDIRECT usage for CV and object properties to support HashTable resizing

Fixed reference separation

Fixed guard support in magic method __set()

Handle interned strings as non-refcounted scalars

Fixed IS_REFERENCE separation

Fixed next index insetion through magic function ($obj[] = ...)

Temporary fix for reference counting

Fixed refcounting

Fixed access to undefined properties

fixed refcounting in "$a->magic_prop += 2"

Fixed refcounting

Fixed __get() related memleak

Refactored read_property() and read_dimension() handlers

Fixed has_propery

zend_hash_add might return NULL in ext/standard/tests/serialize/serialization_objects_011.php

Fixed asseration fail

Fixed dynamic properies table construction

Fixed wrong condition

Fixed new dynamic propery creation

Fixed object to string conversion