Adjust AST to capture additional parens around a context
At the moment the parser strips redundant parens around a context when constructing the AST. So the following two definitions would end up with the same AST.
foo :: (Show a) => a -> String
foo' :: ((Show a)) => a -> StringThis causes roundtripping of an AST via ppr to fail, and adds complexity to the API Annotations.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 8.0.1 |
| Type | Task |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |