Brackets change meaning of value-constructor type
Some legacy code from GHC 7.x does not compile under 8.0 or 8.2. The issue seems to be that I have wrapped brackets around the type of a value constructor, and 8.x does not want to see those brackets.
To try to learn if this change was deliberate, I have searched the release notes. Found nothing.
I am hoping this is an actual bug, as I would hope to be able to wrap any type or term in brackets without changing its meaning (except of course for fixity).
Trac metadata
| Trac field | Value |
|---|---|
| Version | 8.2.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler (Type checker) |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | Linux |
| Architecture | x86_64 (amd64) |