Remove constraint types from HsExtension, post TTG
Once Trees that Grow is landed on the hsSyn AST, remove the constraint types from HsExtension.hs
Hopefully DataId, HasSourceText, OutputableX etc can all go.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 8.2.1 |
| Type | Task |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | sh.najd |
| Operating system | |
| Architecture |