mixin(MODULE) fails if module name is "module"

E.g.:

module.d: (or just `module module;` in source file)
```
import std.stdio;


void main() {

foreach (m; __traits(allMembers, mixin(__MODULE__))) { //module.d-mixin-4(4): Error: expression expected, not 'module'

        writeln(m);
    }
}
```

Documentation says:

Package names cannot be keywords, hence the correspondingdirectory names cannot be keywords, either.


Shouldn't keywords be disallowed for module names?

mixin(__MODULE__) fails if module name is "module"