Commit a4cb9a61 authored by Committed by Edward Z. Yang
Add a ghc -show-packages mode to display ghc's view of the package env
You can use ghc -show-packages, in addition to any -package -package-conf -hide-package, etc flags and see just what ghc's package info looks like. The format is much like ghc-pkg show. Like the existing verbose tracing, but a specific mode. Re-introduce pretty printed package info (Cabal handled this previously).
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