Bugged output for namespace variable declaration

The following program

```cpp
namespace ns {
    extern int a;
};

int ns::a = 1;
```

Produces this output on cppinsights:

```cpp
namespace ns
{
  extern int a;

}

int a = 1;
```

The output should be along the lines of:

```cpp
namespace ns {
  extern int a;
}

namespace ns {
  int a = 1;
}
```
