https://issues.dlang.org/show_bug.cgi?id=22853

          Issue ID: 22853
           Summary: importC: Lexer allows nesting block comments
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: ibuclaw@gdcproject.org

C11 only recognizes line, or block comments.

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