Not supporting arrow functions in a class?

[stlst]

I use arrow functions within my class, but "lines-between-class-members" doesn't work.

code:

class user {
    public func1 = () => {
        // some codes
    }
    public func2 = () => {
        // some codes
    }
    public func3(){
        // some codes
    }
}

what I expect:

class user {
    public func1 = () => {
        // some codes
    }

    public func2 = () => {
        // some codes
    }

    public func3(){
        // some codes
    }
}

However, the output now is:

class user {
    public func1 = () => {
        // some codes
    }
    public func2 = () => {
        // some codes
    }

    public func3(){
        // some codes
    }
}

We see that func1 and func2 are not formatted correctly while func3 can be formatted.
It seems that "lines-between-class-members" doesn't support arrow functions.

[zhoudqa]

My friend found this issue too, and she want to know when this issue can be fixed. Can you fork and fix it?