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This would trip up the improved pattern match checker from [!963](https://gitlab.haskell.org/ghc/ghc/merge_requests/963).
The removed code is related to maintaining the round-trip property, so
should be re-introduced at some point. This is tracked in haskell#6193.
This would trip up the improved pattern match checker from [!963](https://gitlab.haskell.org/ghc/ghc/merge_requests/963).
The removed code is related to maintaining the round-trip property, so
should be re-introduced at some point. This is tracked in haskell#6193.
In #6188, @phadej is hesitating to delete dead code because
So I'm recording his process in #6188 (comment) here so that this issue can serve as a memory hook for him to come back and fix the code later
The code there is in the state to have roundtrip property for code like
which is ugly when pretty-printed as:
That's because buildable: True is no-op, and there could be other a like.
One way, is to pretty-print that as
But that violates roundtrip property.
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