--
--
--
--
lambda: comma op

scc 'i=0; (++_1, ++_1)(i)==i  &&  i==2'
1

scc 'i=0; (_1=10, ++_1)(i)'
11
fixed:  Rg - lambda

scc 'l9 - _1%2'
{0, 2, 4, 6, 8}