Function regular_for

lib/parse-js.js:941–948

(init)

    };

    function regular_for(init) {
        expect(";");
        var test = is("punc", ";") ? null : expression();
        expect(";");
        var step = is("punc", ")") ? null : expression();
        expect(")");
        return as("for", init, test, step, in_loop(statement));
    };

    function for_in(init) {
        var lhs = init[0] == "var" ? as("name", init[1][0]) : init;