https://issues.dlang.org/show_bug.cgi?id=23878

          Issue ID: 23878
           Summary: [REG 2.103] internal compiler error: C++ 'null'
                    template value parameter is not supported
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: regression
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: ibuclaw@gdcproject.org

See PR, which introduced the ICE.

https://github.com/dlang/dmd/pull/15100

```
template Template(T...)
{
    extern(C++) const __gshared int Template = 0;
}
auto x = Template!(null);
```

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