[Issue 21973] New: importC: AssertError at src/dmd/dsymbolsem.d(4307): Assertion failure

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21973

          Issue ID: 21973
           Summary: importC: AssertError at src/dmd/dsymbolsem.d(4307):
                    Assertion failure
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: critical
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: ibuclaw at gdcproject.org

This is a variant of issue 21972.  When there are other fields, an ICE occurs.
---
struct outer
{
  int field;
 struct
   {
     int nested;
   };
};

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