f90f898fa5
`EvaluatedToUnknown` -> `EvaluatedToAmbigStackDependent`, `EvaluatedToRecur` -> `EvaluatedToErrStackDependent` Less confusing names, since the only difference between them and their parallel `EvalutedTo..` is that they are stack dependent. r? lcnr
For more information about how rustc works, see the rustc dev guide.