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

Changed "finally" handling. Removed EX(fast_ret) and EX(delayed_exception). Allocate and use additional IS_TMP_VAR slot on VM stack instead.

bring back all the TSRMLS_FETCH() stuff

for better comparability with the mainstream

cleanup TSRMLS_FETCH

Allocate copies of internal functions inherited in user classes at CG(arena), instead of permanent heap (malloc).

Initial coalesce operator implementation

fix signed/unsigned mismatch

Removed ZEND_QM_ASSIGN_VAR and ZEND_JMP_SET_VAR opcodes (in PHPNG they did exacly the same as ZEND_QM_ASSIGN and ZEND_JMP_SET)

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.

Reorder fields for better nenory consumtion and data locality on 64-bit systems

Use efree_size() instead of efree() where posible

Remove ZEND_ACC_INTERACTIVE and CG(interactive)

As far as I can discern these are leftovers of the interactive
shell implementation that was used before PHP 5.4. Now the readline
ext

Remove ZEND_ACC_INTERACTIVE and CG(interactive)

As far as I can discern these are leftovers of the interactive
shell implementation that was used before PHP 5.4. Now the readline
ext makes use of normal eval calls for this.

So, dropping these until there is evidence to the contrary, as they
currently wouldn't work anyway.

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master renames phase 2

master renames phase 1

first shot on merging the core fro the int64 branch

Improve fix for #66608

Fixed segfault with empty break

New added opcodes don't need to be resloved

Fixed bug #66608 (Incorrect behavior with nested "finally" blocks)

Preliminary function decl support

Problem: __FUNCTION__ etc don't work anymore, due to lexer/parser
interdependency.

Suppress warning "cast from pointer to integer of different size"

Refactored parameter passing mechanism.

In PHP-5.6 and below each argument passed to user function was copies on VM stack twice.
Now we always have ZEND_INIT_FCALL (or simular) opcode th

Refactored parameter passing mechanism.

In PHP-5.6 and below each argument passed to user function was copies on VM stack twice.
Now we always have ZEND_INIT_FCALL (or simular) opcode that pushes "call frame" on top of VM stack.
"Call frame" is actually the same zend_execute_data structure.
All the following ZEND_SEND instructions push arguments on top of the stack in a way that they directly comes into corresponding CV variables of the called frame. Extra arguments are copied at the end of stack frame (after all CV and TMP variables) on function enterance.

There are two minor incompatibilities:
1) It's not allowed to decalre functions redefining arguments e.g. "function foo($a,$a) {}".
2) func_get_arg() and func_get args() return the current value of argument and not the original value that was sent.

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AST stage 2.4

Use arena allocator for zend_class_entry, zend_op_array and zend_property_info that live till the end of request

Use absolute addresses as branch targets for NEW, FE_RESET and FE_FETCH