Fix for with empty expression lists

Load lineno when compiling exprs

Fix compound assign to static property

Remove dead code

__autoload error

Port methods

The duplicated magic method checks are ugly

Cleanup

zend_emit_jump and zend_emit_cond_jump

zend_update_jump_target

Remove bits of dead code

Support static closures

Handle function doc comments

Fix lexer/compiler interdependency

Use dedicated func_decl ast node

Functions need a bunch of extra info, that becomes inconvenient
to handle using the normal ast structure.

Small cleanup

Current problem: build_runtime_defined_function_key is lexer
coupled

Port closures

Port closure use

Lineno corrections

Port __METHOD__

Port __FUNCTION__ to AST

Preliminary function decl support

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

Port parameter defs

Has one bug re \self

Fixed ZTS build

Implemented builtin instruction for strlen()

Fixed ZTS build