refactored
fix RunkitConstant::rename method
test complete for RunkitConstant
test complete for RunkitConstant
test for RunkitFunction::rename
add define and isDefined methods to RunkitAction interface
implement new two methods
add runkit function test
add test for RunkitConstant::isDefined
add test for RunkitConstant::define
fix RunkitFunction::__invoke is function not defined throwing exception
tests for RunkitFunction::__invoke
check class parameter in RunkitMethod::__construct
implement define and isDefined in RunkitClass
test property
implement RunkitProperty::isDefined
implement RunkitProperty::define
fix RunkitProperty::redefine
create test for RunkitProperty::getClass
test RunkitProperty::getName