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authorsheaf <sam.derbyshire@gmail.com>2023-04-29 18:59:10 +0200
committersheaf <sam.derbyshire@gmail.com>2023-04-29 20:23:06 +0200
commit57277662989b97dbf5ddc034d6c41ce39ab674ab (patch)
tree7d9fe1c4cb95a8bcf82490c354b5df0e9ab9037c /testsuite/tests/rename/should_fail/rnfail007.hs
parent4eaf2c2a7682fa9933261f5eb25da9e2333c9608 (diff)
downloadhaskell-57277662989b97dbf5ddc034d6c41ce39ab674ab.tar.gz
Add the Unsatisfiable class
This commit implements GHC proposal #433, adding the Unsatisfiable class to the GHC.TypeError module. This provides an alternative to TypeError for which error reporting is more predictable: we report it when we are reporting unsolved Wanted constraints. Fixes #14983 #16249 #16906 #18310 #20835
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