util: .inspect() misformats __proto__ property on prototype-less object #3788
Description
> var o = Object.create(null); o.__proton__ = 42; util.inspect(o)
'{ __proton__: 42 }' // no brackets
> var o = Object.create(null); o.__proto__ = 42; util.inspect(o)
'{ [__proto__]: 42 }' // brackets
I speculate arrayToHash() needs to use Object.create(null) for its dictionary object.