fix support of arrow functions
fix support of arrow functions


Former-commit-id: 07c97d11233208a233c8dd26943b566169c7f3f6
mvertes/skale-engine,skale-me/skale-engine,mvertes/skale-engine,mvertes/skale-engine,skale-me/skale-engine,skale-me/skale-engine