[Bug] Invalid operator precedence priority

[maltsev]

The following code

function foob(a) {
    return (a || 'one') + 'two';
}

gets translated to

function foob(a) {
    return a || "onetwo";
}

I've tested it with esbuild built from the sources from the master branch.

[evanw]

Oh crap, that's not good. There's a check missing in my constant folding logic. Thanks for the report! Will fix.