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Fake enum literal type #2604

@superbobry

Description

@superbobry

Describe the Bug

I suspect this is caused by #2080, because the issue is only reproducible when the property of an enum matches on self (and I have to suppress these errors).

Reproducer:

import enum

class A(enum.Enum):
  FOO = "FOO"

  @property
  def p(self) -> int:  # pyrefly: ignore[bad-return]
    match self:  # pyrefly: ignore[non-exhaustive-match]
      case A.FOO: return 42


def test(a: A) -> int:
  return a.p // 2

Ouput:

ERROR `//` is not supported between `Literal[A.p]` and `Literal[2]` [unsupported-operation]
  --> /tmp/foo.py:13:10
   |
13 |   return a.p // 2
   |          ^^^^^^^^
   |
  Argument `Literal[A.p]` is not assignable to parameter `value` with type `int` in function `int.__rfloordiv__`

Note that A.p is not a real literal type.

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