react/no-unused-state broken for class fields

[TzviPM]

If a piece of state is used within an ES7 property initializer whose value is an arrow function, react/no-unused-state still reports the state as unused. For example:

[ljharb]

ES7 is ES2016 - you might be thinking of "class fields", which is a stage 3 proposal (ie, it's ES Nothing Yet).

Thanks, we'll try to repro this.