Do not allow to define a static name property on classes

[lazdmx]

Currently it is possible to redefine a static name property for classes which leads to some unclear results in runtime - it returns class name at runtime.

class A {
    static name = 'Some name'

    static getName() {
        return this.name
    }
}


alert(A.getName()) // Shows `A` instead of `Some name`

So I think that there are two problems.

1. A type-system couldn't find a name as apparent member derived from Function type and as it follows removing a line static name = 'Some name' leads to compilation error.
2. I suggest that TS should notify when I try to redefine a name by issuing error or warning (if they are) because a good-looking code would works incorrectly in runtime.

[tinganho]

Look at #442. I think it is impossible for TS to implement a static name property on classes.

[lazdmx]

Thanks, didn't know. I will continue discussion in that issue.