Nim/tenum_duplicate.nim at pr_error_message - Nim - Kyren's Code

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ringabout 42486e1b2f unordered enum for better interoperability with C (#23585 )

ref https://forum.nim-lang.org/t/11564
```nim
block: # unordered enum
  block:
    type
      unordered_enum = enum
        a = 1
        b = 0

    doAssert (ord(a), ord(b)) == (1, 0)

  block:
    type
      unordered_enum = enum
        a = 1
        b = 0
        c

    doAssert (ord(a), ord(b), ord(c)) == (1, 0, 2)

  block:
    type
      unordered_enum = enum
        a = 100
        b
        c = 50
        d

    doAssert (ord(a), ord(b), ord(c), ord(d)) == (100, 101, 50, 51)

  block:
    type
      unordered_enum = enum
        a = 7
        b = 6
        c = 5
        d

    doAssert (ord(a), ord(b), ord(c), ord(d)) == (7, 6, 5, 8)
```

2024-05-10 10:32:07 +02:00

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 discard """
   errormsg: "duplicate value in enum 'd'"
 """
 type
   unordered_enum = enum
     a = 1
     b = 0
     c
     d = 2