https://issues.dlang.org/show_bug.cgi?id=20782

          Issue ID: 20782
           Summary: std.conv.to can't convert string to const enum
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P1
         Component: phobos
          Assignee: nobody@puremagic.com
          Reporter: atila.neves@gmail.com

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import std.conv: to;
enum Enum { oops }
"foo".to!(const Enum);  // doesn't compile
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