Port return statement
Port echo
Port throw
Port break/continue
Port goto
Make unticked_statement an ast node (usually NULL)
Port goto label
Make statement asty
Expr stmts go through ast
Port while

Note: From here on everything is broken
Port do/while
Support creating of ast nodes with >3 children
Port for
Port if (partial)
Make inner_statement_list asty
Port foreach
Port switch
Fix leak
Port try/catch

Down to 50 failing Zend tests
Store (bad) estimate of lineno with ast

Currently not used yet