Moved zend_is_true() from zend_execute.h/zend_execute_API.c into zend_operators.h/zend_operators.c.
Splited the most expensive part of inline i_zend_is_true() into a separate zend_object_is_true(

Moved zend_is_true() from zend_execute.h/zend_execute_API.c into zend_operators.h/zend_operators.c.
Splited the most expensive part of inline i_zend_is_true() into a separate zend_object_is_true().
Replaced zendi_convert_to_long() with cals to zend_is_true().

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Use zend_string* for op_array->arg_info[]->name and op_array->arg_info[]->class_name. For internal functions we still use char*.

Rename EX_VAR_2() into ZEND_CALL_VAR() and EX_VAR_NUM_2() into ZEND_CALL_VAR_NUM().

Pack EX(frame_info) into EX(This).u1.v.reserved. Rename "frame"kind" into "call_kind" and VM_FRAME_... into ZEND_CALL_...

Pack EX(num_args) into EX(This).u2.num_args

Moved i_zval_ptr_dtor() from zend_execute.h to zend_variables.h

Removed useless assert. EG(uninitialized_zval) can't be refcounted.

Reuse zend_assign_to_variable() in zend_std_write_property()

Get rid of zend_free_op structure (use zval* instead).
Get rid of useless TSRMLS arguments.

fix datatype mismatches for strings from userspace

ZEND_RECV didn't really use opline->extended_value for FETCH_CLASS flags

Remove Z_OBJ_CLASS_NAME_P

Doesn't make much sense anymore, now that get_class_entry is
gone.

Improved VM stack primitives for fast paths. Slow paths are not inlined anymore.

Remove get_class_entry object handler

Remove support for classes without class entries

get_class_entry must be non-NULL and return non-NULL.

Exposed zend_clean_and_cache_symbol_table() and fixed incorrect efree()

Reorder fields for better alignment on both 32-bit and 64-bit systems

Merged EX(frame_kind) and EX(flags) into single word

Replaced EG(This) and EX(object) with EX(This).
Internal functions now recieves zend_execute_data as the first argument.

Removed zend_execute_data->prev_nested_call. Reuse prev_execute_data instead.

Micro optimization

Use more readable inline functions

Fixed compilation warnings

Fixed compilation warnings

Use zval_ptr_dtor_nogc to destroy literals

Also move the definition of zval_ptr_dtor_nogc to zend_variables.h
(from zend_execute.h/.c) as it's used in a few places.