8144020: Remove long as an internal numeric type
Reviewed-by: attila, sundar, lagergren

8035312: Various array and ScriptObject length issues for non writable length fields
Reviewed-by: hannesw, attila

8061391: concat as a builtin optimistic form, had to remove NoTypedArrayData and replace it, as we throw away a lot of optimistic link opportunities with NoTypedArrayData not being Continuous
Reviewed-by: attila, hannesw