duplicate_key: {
    options = {
        objects: true,
        side_effects: true,
    }
    input: {
        var o = {
            a: 1,
            b: 2,
            a: 3,
        };
        for (var k in o)
            console.log(k, o[k]);
    }
    expect: {
        var o = {
            a: 3,
            b: 2,
        };
        for (var k in o)
            console.log(k, o[k]);
    }
    expect_stdout: [
        "a 3",
        "b 2",
    ]
}

duplicate_key_strict: {
    options = {
        objects: true,
        side_effects: true,
    }
    input: {
        "use strict";
        var o = {
            a: 1,
            b: 2,
            a: 3,
        };
        for (var k in o)
            console.log(k, o[k]);
    }
    expect: {
        "use strict";
        var o = {
            a: 1,
            b: 2,
            a: 3,
        };
        for (var k in o)
            console.log(k, o[k]);
    }
    expect_stdout: true
}

duplicate_key_side_effect: {
    options = {
        objects: true,
        side_effects: true,
    }
    input: {
        var o = {
            a: 1,
            b: o = 2,
            a: 3,
        };
        for (var k in o)
            console.log(k, o[k]);
    }</td></tr></table>
<table class='tabs'><tr><td>
<a href='/hydrilla-builder/about/'>about</a><a href='/hydrilla-builder/'>summary</a><a href='/hydrilla-builder/refs/?id=0009efd8588b462cfbbc6d69c1dcc1cf2230dd4a'>refs</a><a href='/hydrilla-builder/log/README.md'>log</a><a href='/hydrilla-builder/tree/README.md?id=0009efd8588b462cfbbc6d69c1dcc1cf2230dd4a'>tree</a><a class='active' href='/hydrilla-builder/commit/README.md?id=0009efd8588b462cfbbc6d69c1dcc1cf2230dd4a'>commit</a><a href='/hydrilla-builder/diff/README.md?id=0009efd8588b462cfbbc6d69c1dcc1cf2230dd4a'>diff</a></td><td class='form'><form class='right' method='get' action='/hydrilla-builder/log/README.md'>
<input type='hidden' name='id' value='0009efd8588b462cfbbc6d69c1dcc1cf2230dd4a'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/hydrilla-builder/commit/?id=0009efd8588b462cfbbc6d69c1dcc1cf2230dd4a'>root</a>/<a href='/hydrilla-builder/commit/README.md?id=0009efd8588b462cfbbc6d69c1dcc1cf2230dd4a'>README.md</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='0009efd8588b462cfbbc6d69c1dcc1cf2230dd4a'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Wojtek Kosior &lt;koszko@koszko.org&gt;</td><td class='right'>2022-06-14 10:40:57 +0200</td></tr>
<tr><th>committer</th><td>Wojtek Kosior &lt;koszko@koszko.org&gt;</td><td class='right'>2022-06-14 10:40:57 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/hydrilla-builder/commit/README.md?id=0009efd8588b462cfbbc6d69c1dcc1cf2230dd4a'>0009