https://issues.dlang.org/show_bug.cgi?id=12580

          Issue ID: 12580
           Summary: [REG2.066a] dup() won't accept void[]
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: regression
          Priority: P1
         Component: DMD
          Assignee: nobody@puremagic.com
          Reporter: jiki@red.email.ne.jp

Today I have just updated DMD from git-head.
So it won't compile the following code.

void main()
{
    void[] v = [0];
    auto v2 = v.dup;
}

This should be caused by the recent compiler change.

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