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    57277662
    Add the Unsatisfiable class · 57277662
    sheaf authored
    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
    57277662
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    Add the Unsatisfiable class
    sheaf authored
    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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UnsatisfiableFail1.hs 221 B