It would be nice if we can use import expressions in __ctfe context as shown below.

run.dlang.io: https://t.co/ui274K3Vqa?amp=1

```dlang
import std;

void main()
{
    enum str = load(__FILE__);
}

auto load(string path)
{
    if (__ctfe)
    {
        return import(path);
    }
    else
    {
        return readText(path);
    }
}
```

It fails to compile with the following message:
```console
> rdmd playground.d
onlineapp.d(12): Error: variable `path` cannot be read at compile time
```