GHC API no longer exports location information for error/warning messages
scion uses the location information in error/warning Messages for background typechecking (for some reason). It can now (with the 6.12.1 RC2 API) no longer do anything to a Message other than show it, so it would have to re-parse the output of "show" to extract the location information.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 6.12.1 RC1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | GHC API |
| Test case | |
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