body.forIn(x, y).block().expression(x.postDecr());
JSForVarStatement _forVar0 = body.forVar("x0");
Assert.assertNull(_forVar0.getExpression());
JSVariable x0 = _forVar0.getVariable();
_forVar0.comma("x1").comma("x2", codeModel.integer(10));
_forVar0.test(x0.lt(codeModel.integer(5))).update(x0.postIncr())
.expression(y.plusAssign(x0));
JSForVarStatement _forVar1 = body
.forVar("x1", codeModel.integer(0));