do_not_update_lhs: {
    options = {
        global_defs: { DEBUG: 0 }
    }
    input: {
        DEBUG++;
        DEBUG += 1;
        DEBUG = 1;
    }
    expect: {
        DEBUG++;
        DEBUG += 1;
        DEBUG = 1;
    }
}

do_update_rhs: {
    options = {
        global_defs: { DEBUG: 0 }
    }
    input: {
        MY_DEBUG = DEBUG;
        MY_DEBUG += DEBUG;
    }
    expect: {
        MY_DEBUG = 0;
        MY_DEBUG += 0;
    }
}

mixed: {
    options = {
        evaluate: true,
        global_defs: {
            DEBUG: 0,
            ENV: 1,
            FOO: 2,
        }
    }
    input: {
        var ENV = 3;
        var FOO = 4;
        f(ENV * 10);
        --FOO;
        DEBUG = 1;
        DEBUG++;
        DEBUG += 1;
        f(DEBUG);
        x = DEBUG;
    }
    expect: {
        var ENV = 3;
        var FOO = 4;
        f(10);
        --FOO;
        DEBUG = 1;
        DEBUG++;
        DEBUG += 1;
        f(0);
        x = 0;
    }
    expect_warnings: [
        'WARN: global_defs ENV redefined [test/compress/issue-208.js:41,12]',
        'WARN: global_defs FOO redefined [test/compress/issue-208.js:42,12]',
        'WARN: global_defs FOO redefined [test/compress/issue-208.js:44,10]',
        'WARN: global_defs DEBUG redefined [test/compress/issue-208.js:45,8]',
        'WARN: global_defs DEBUG redefined [test/compress/issue-208.js:46,8]',
        'WARN: global_defs DEBUG redefined [test/compress/issue-208.js:47,8]',
    ]
}
de566b9cd84c999c0074c906928e2cbef1ef30'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/tests/cups.scm'>
<input type='hidden' name='id' value='9cde566b9cd84c999c0074c906928e2cbef1ef30'/><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='/guix/log/?id=9cde566b9cd84c999c0074c906928e2cbef1ef30'>root</a>/<a href='/guix/log/gnu?id=9cde566b9cd84c999c0074c906928e2cbef1ef30'>gnu</a>/<a href='/guix/log/gnu/tests?id=9cde566b9cd84c999c0074c906928e2cbef1ef30'>tests</a>/<a href='/guix/log/gnu/tests/cups.scm?id=9cde566b9cd84c999c0074c906928e2cbef1ef30'>cups.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/tests/cups.scm?id=9cde566b9cd84c999c0074c906928e2cbef1ef30&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>