Remove tracing and Show instance for LabeledPackageConstraint

Author: philderbeast

cabal-install-solver/src/Distribution/Solver/Modular.hs

@@ -66,7 +66,7 @@ modularResolver sc (Platform arch os) cinfo iidx sidx pkgConfigDB pprefs pcs pns
       -- Indices have to be converted into solver-specific uniform index.
       idx    = convPIs os arch cinfo gcs (shadowPkgs sc) (strongFlags sc) (solveExecutables sc) iidx sidx
       -- Constraints have to be converted into a finite map indexed by PN.
-      gcs    = M.fromListWith (++) (map pair $ traceShowId pcs)
+      gcs    = M.fromListWith (++) (map pair pcs)
         where
           pair lpc = (pcName $ unlabelPackageConstraint lpc, [lpc])
 

cabal-install-solver/src/Distribution/Solver/Types/LabeledPackageConstraint.hs

@@ -13,7 +13,6 @@ import Distribution.Compat.Prelude
 import Prelude ()
 import Distribution.Solver.Types.ConstraintSource
 import Distribution.Solver.Types.PackageConstraint
-import Distribution.Types.PackageName
 import Distribution.Types.VersionRange
 import qualified Data.Map.Strict as Map
 import Data.List (groupBy)
@@ -22,21 +21,6 @@ import Data.List (groupBy)
 data LabeledPackageConstraint
    = LabeledPackageConstraint PackageConstraint ConstraintSource
 
-instance {-# INCOHERENT #-} Show [LabeledPackageConstraint] where
-    show [] = ""
-    show xs = intercalate "\n" $
-        filter (/= "") (showLabeledPackageConstraint <$> xs)
-
-instance Show LabeledPackageConstraint where
-    show = showLabeledPackageConstraint
-
-showLabeledPackageConstraint :: LabeledPackageConstraint -> String
-showLabeledPackageConstraint (LabeledPackageConstraint pc@(PackageConstraint scope _) src@ConstraintSourceProjectConfig{}) =
-    if unPackageName (scopeToPackageName scope) == "hashable"
-        then "SOURCE: " ++ showConstraintSource src ++ ", CONSTRAINT: " ++ show pc
-        else ""
-showLabeledPackageConstraint _ = ""
-
 unlabelPackageConstraint :: LabeledPackageConstraint -> PackageConstraint
 unlabelPackageConstraint (LabeledPackageConstraint pc _) = pc