build_runtime_definition_key returns zend_string*

Change current_namespace to a zend_string*

For filenames a pointer comparison is sufficient

Rename to zend_str_equals_literal and turn into a macro

So we can make of sizeof rather than strlen

zend_str_equals_str(_ci)

Use zend_str_equals more often

Add zend_ prefix for emit_op(_tmp)

zend_ast_create determined child count automatically

Remove zend_ast_create_unary etc

Remove some unused compiler globals

More dead code

zend_get_class_fetch_type works on zend_string

Remove duplicate code

We don't pay per newline...

Cleanup dead/duplicate code

Use zend_ast_get_str where possible

Add zend_ast_list* variant to parser stack element

zend_do_op_data -> zend_emit_op_data

Use separate node type for lists

This saves storing the children count for normal ast nodes.

Store lineno for zval ast nodes more efficiently

Remove last EA usages

Still retaining the EA field in znode as it is used by opcache

Use more specific parser stack nodes

Cleanup member modifier code

Create namespace_name via AST

zend_do_return -> zend_emit_final_return