Add MonadFail instance for Either String
There seems to be the low hanging fruit of a MonadFail instance for Either String.
instance MonadFail (Either String) where
fail = LeftTrac metadata
| Trac field | Value |
|---|---|
| Version | |
| Type | FeatureRequest |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Core Libraries |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | ekmett |
| Operating system | |
| Architecture |