mono: 5 -> 6

pkgs/applications/science/robotics/mission-planner/default.nix

···
-{ lib, stdenv, fetchurl, makeDesktopItem, makeWrapper, unzip, mono6 }:
+{ lib, stdenv, fetchurl, makeDesktopItem, makeWrapper, unzip, mono }:
 
 let
   pname = "mission-planner";
···
     sha256 = "1cgpmsmmnbzw1lwsdafp8yklk1rwc61yf12vc1ahcc6bl7q2385x";
   };
 
-  nativeBuildInputs = [ makeWrapper mono6 unzip ];
+  nativeBuildInputs = [ makeWrapper mono unzip ];
   sourceRoot = ".";
 
   AOT_FILES = [ "MissionPlanner.exe" "MissionPlanner.*.dll" ];
···
     install -m 444 -D mpdesktop150.png $out/share/icons/mission-planner.png
     cp -r ${desktopItem}/share/applications $out/share/
     mv * $out/opt/mission-planner
-    makeWrapper ${mono6}/bin/mono $out/bin/mission-planner \
+    makeWrapper ${mono}/bin/mono $out/bin/mission-planner \
       --add-flags $out/opt/mission-planner/MissionPlanner.exe
     runHook postInstall
   '';

pkgs/development/tools/omnisharp-roslyn/default.nix

···
 { lib, stdenv
 , fetchurl
-, mono6
+, mono
 , msbuild
 , dotnet-sdk
 , makeWrapper
···
     chmod -R u+w $out/src
     mv $out/src/.msbuild/Current/{bin,Bin}
 
-    makeWrapper ${mono6}/bin/mono $out/bin/omnisharp \
+    makeWrapper ${mono}/bin/mono $out/bin/omnisharp \
     --add-flags "$out/src/OmniSharp.exe"
   '';
 

pkgs/misc/vscode-extensions/ms-dotnettools-csharp/default.nix

···
 , icu
 , stdenv
 , openssl
-, mono6
+, mono
 }:
 
 let
   # Get as close as possible as the `package.json` required version.
   # This is what drives omnisharp.
-  mono = mono6;
-
   rtDepsSrcsFromJson = builtins.fromJSON (builtins.readFile ./rt-deps-bin-srcs.json);
 
   rtDepsBinSrcs = builtins.mapAttrs (k: v:
···
     declare omnisharp_dir="$PWD/${omnisharp.installPath}"
     unzip_to "${omnisharp.bin-src}" "$omnisharp_dir"
     rm "$omnisharp_dir/bin/mono"
-    ln -s -T "${mono6}/bin/mono" "$omnisharp_dir/bin/mono"
+    ln -s -T "${mono}/bin/mono" "$omnisharp_dir/bin/mono"
     chmod a+x "$omnisharp_dir/run"
     touch "$omnisharp_dir/install.Lock"
 

pkgs/tools/graphics/snapdragon-profiler/default.nix

···
 , makeDesktopItem
 , copyDesktopItems
 , icoutils
-, mono6
+, mono
 , jre
 , androidenv
 , gtk-sharp-2_0
···
   ];
 
   buildInputs = [
-    mono6
+    mono
     gtk-sharp-2_0
     gtk2
     libcxx
···
 
     mv *.so $out/lib
     cp -r * $out/lib/snapdragon-profiler
-    makeWrapper "${mono6}/bin/mono" $out/bin/snapdragon-profiler \
+    makeWrapper "${mono}/bin/mono" $out/bin/snapdragon-profiler \
       --add-flags "$out/lib/snapdragon-profiler/SnapdragonProfiler.exe" \
       --suffix PATH : ${lib.makeBinPath [ jre androidenv.androidPkgs_9_0.platform-tools coreutils ]} \
       --prefix MONO_GAC_PREFIX : ${gtk-sharp-2_0} \

pkgs/top-level/all-packages.nix

···
 
   fsharp = callPackage ../development/compilers/fsharp { };
 
-  fsharp41 = callPackage ../development/compilers/fsharp41 { mono = mono6; };
+  fsharp41 = callPackage ../development/compilers/fsharp41 { };
 
   fstar = callPackage ../development/compilers/fstar {
     ocamlPackages = ocaml-ng.ocamlPackages_4_07;
···
 
   mlton = mlton20180207;
 
-  mono = mono5;
+  mono = mono6;
 
   mono4 = lowPrio (callPackage ../development/compilers/mono/4.nix {
     inherit (darwin) libobjc;
···
 
   monoDLLFixer = callPackage ../build-support/mono-dll-fixer { };
 
-  roslyn = callPackage ../development/compilers/roslyn { mono = mono6; };
+  roslyn = callPackage ../development/compilers/roslyn { };
 
-  msbuild = callPackage ../development/tools/build-managers/msbuild { mono = mono6; };
+  msbuild = callPackage ../development/tools/build-managers/msbuild { };
 
   mosml = callPackage ../development/compilers/mosml { };