https://issues.dlang.org/show_bug.cgi?id=21982

          Issue ID: 21982
           Summary: importC: Error: variable no definition of struct
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: major
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: ibuclaw@gdcproject.org

>From the testsuite
---
imports/cstuff1.c(308): Error: variable `cstuff1.tests1.s` no definition of
struct `SS`
imports/cstuff1.c(315): Error: variable `cstuff1.tests2.t` no definition of
struct `T`
---

Which seems to suggest that TypeTag isn't resolving all issues around symbol resolution.

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