Assert.assertNotNull(_forVar1.getExpression());
JSVariable x1 = _forVar1.getVariable();
_forVar1.test(x1.lt(codeModel.integer(5))).update(x1.postIncr())
.expression(y.plusAssign(x1));
JSForVarInStatement _forVarIn = body.forVarIn("x3", y);
JSVariable x3 = _forVarIn.getVariable();
_forVarIn.expression(y.plusAssign(x3));
body.doWhile(x.lt(y)).expression(x.postIncr());
body.doWhile(x.lt(y)).block().expression(x.postIncr());
body._while(x.lt(y)).expression(x.postIncr());