fix all for loop tests

[samczsun]

had to update the expected outputs for the compact ast cfg because we were generating them wrong. here's an example:

code:

    function loopNoPreCond() public {
        uint c;

        uint i = 0;
        for (; ; i++) {
            if (i >= 10) break;
            c++;
        }
    }

dev:

this branch:

notice the incorrect edge from 9->4 on dev, which is fixed on this branch

[lgtm-com]

This pull request introduces 1 alert when merging 6d4e1c7 into 6aee221 - view on LGTM.com

new alerts:

• 1 for Unused local variable