zend_ast_dynamic_ast returns new node

Remove dead code

AST stage 2.4

Remove dead code

AST stage 1.9

Expressions (mostly) use the AST

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

Fixed support for constants inherited from interfaces

Avoid useles constants update

Use new zend_hash iteration API

Fix patch for bug #67436

Fix bug #67436

AST-based compiler: Stage 1

Improved conditions order

Remove (&ast->u.child)[i] weirdness

Introduced new BIND_GLOBAL instraction instead of FETCH_W+ASSIGN_REF pair that caused a lot of useles checks

Use reference counting instead of zval duplication

Simplified and optimized ZEND_HANDLE_NUMERIC()

Forbid writing to temporary expressions

Property handle calls on [] and '' consts/tmps

Remove now unnecessary code in begin_method_call

Remove object_stack (mostly)

Cleanup old grammar rules

LTR static member access

Change precedence of $ operator

$$foo['bar'] is now interpreted as ${$foo}['bar'] rather than
${$foo['bar']}.

typo