https://issues.dlang.org/show_bug.cgi?id=12776

          Issue ID: 12776
           Summary: Wrong type for __vector(int[4]).init
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P1
         Component: DMD
          Assignee: nobody@puremagic.com
          Reporter: turkeyman@gmail.com

alias __vector(int[4]) T;

typeof(T.init) == int[4]. This seems wrong, it should surely be T, ie,
__vector(int[4])?

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