https://issues.dlang.org/show_bug.cgi?id=21791

          Issue ID: 21791
           Summary: Stack overflow for forward-referenced enum initializer
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: moonlightsentinel@disroot.org

This code causes due to a stack overflow:

enum Foo
{
    a = Foo.init
}

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