optimized json_encode()
optimized json_encode()

- does not allocate (that much)
- improved internal enumeration and recursion checks
- smaller data structures

iolevel/peachpie-concept,iolevel/peachpie,peachpiecompiler/peachpie,peachpiecompiler/peachpie,iolevel/peachpie-concept,iolevel/peachpie,iolevel/peachpie,iolevel/peachpie-concept,peachpiecompiler/peachpie