Wrong static super call

https://typescripttolua.github.io/play/#code/FAYwNghgzlAECCsDexZtlALhTBLEsA4gKaYAUAlMqurQE6kCudAdrAETzsDcNaAvsEGhIMWACFYxAB6ZiLACZxEKWlhz4ipStVr0mrDIwAOxOgDoS5KgGoO4nn1iDBQA
```
function B.Get(self)
    return A.prototype.Get(self) .. "B"
end
```
shouldn't call super function in prototype, expect result is:
```
function B.Get(self)
    return A.Get(self) .. "B"
end
```