Merge pull request #6783 from phadej/build-reports-parsec

...l/Cabal-quickcheck/src/Test/QuickCheck/Instances/Cabal.hs

Cabal/Distribution/Compiler.hs

Cabal/tests/UnitTests/Distribution/Described.hs

cabal-install/Distribution/Client/BuildReports/Anonymous.hs

cabal-install/Distribution/Client/BuildReports/Lens.hs

cabal-install/Distribution/Client/BuildReports/Storage.hs

cabal-install/Distribution/Client/BuildReports/Types.hs

cabal-install/Distribution/Client/BuildReports/Upload.hs

cabal-install/Distribution/Client/Install.hs

cabal-install/Distribution/Client/Upload.hs

cabal-install/cabal-install.cabal

cabal-install/cabal-install.cabal.pp

cabal-install/tests/UnitTests.hs

...tests/UnitTests/Distribution/Client/ArbitraryInstances.hs

...nstall/tests/UnitTests/Distribution/Client/BuildReport.hs

...tall/tests/UnitTests/Distribution/Client/ProjectConfig.hs

.../tests/UnitTests/Distribution/Client/TreeDiffInstances.hs