https://issues.dlang.org/show_bug.cgi?id=23508

          Issue ID: 23508
           Summary: Unable to build japanese named source files
           Product: D
           Version: D2
          Hardware: x86
                OS: Windows
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: msnmancini@hotmail.com

わかもの.d ->
```
module わかもの;
```


app.d
```
import わかもの;
void main()
{
}
```

dmd -i source/app.d:
Error: unable to read module `わかもの`


ldc:
Error: unable to read module `わかもの`

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