These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.07 s (backtrack: 0/20).

[ebuild  N     ] app-text/dos2unix-7.5.7::gentoo  USE="nls -debug -test -verify-sig" 977 KiB
[ebuild  N     ] dev-lang/ghc-9.8.4-r1:0/9.8.4::gentoo  USE="gmp (-big-endian) -doc -elfutils -ghcbootstrap -ghcmakebinary -llvm -numa -profile -test -unregisterised -verify-sig" LLVM_SLOT="20 -17 -18 -19" 238903 KiB
[ebuild  N     ] app-admin/haskell-updater-1.5.0.0::gentoo  45 KiB
[ebuild  N     ] dev-haskell/fail-4.9.0.0:0/4.9.0.0::gentoo  USE="-profile" 3 KiB
[ebuild  N     ] dev-haskell/mtl-2.3.1-r1:0/2.3.1::gentoo  USE="-doc -hscolour -profile" 26 KiB
[ebuild  N     ] dev-haskell/transformers-0.6.1.0:0/0.6.1.0::gentoo  USE="-doc -hscolour -profile" 41 KiB
[ebuild  N     ] dev-haskell/transformers-compat-0.6.6:0/0.6.6::gentoo  USE="-doc -hscolour -profile" 41 KiB

Total: 7 packages (7 new), Size of downloads: 240033 KiB