[Windows] Implement new directories hierarchy (#8616)

images/windows/scripts/build/Install-Haskell.ps1

@@ -0,0 +1,55 @@
+################################################################################
+##  File:  Install-Haskell.ps1
+##  Desc:  Install Haskell for Windows
+################################################################################
+Import-Module "$env:ChocolateyInstall\helpers\chocolateyProfile.psm1"
+
+# install minimal ghcup, utilizing pre-installed msys2 at C:\msys64
+Write-Host 'Installing ghcup...'
+$msysPath = "C:\msys64"
+$ghcupPrefix = "C:\"
+$cabalDir = "C:\cabal"
+
+$ghcupDownloadURL = "https://downloads.haskell.org/~ghcup/x86_64-mingw64-ghcup.exe"
+
+# If you want to install a specific version of ghcup, uncomment the following lines
+# $ghver = "0.1.19.4"
+# $ghcupDownloadURL = "https://downloads.haskell.org/~ghcup/${ghver}/x86_64-mingw64-ghcup-${ghver}.exe"
+
+# Other option is to download ghcup from GitHub releases:
+# https://github.com/haskell/ghcup-hs/releases/latest
+
+New-Item -Path "$ghcupPrefix\ghcup" -ItemType 'directory' -ErrorAction SilentlyContinue | Out-Null
+New-Item -Path "$ghcupPrefix\ghcup\bin" -ItemType 'directory' -ErrorAction SilentlyContinue | Out-Null
+Start-DownloadWithRetry -Url $ghcupDownloadURL -Name "ghcup.exe" -DownloadPath "$ghcupPrefix\ghcup\bin"
+
+Set-SystemVariable "GHCUP_INSTALL_BASE_PREFIX" $ghcupPrefix
+Set-SystemVariable "GHCUP_MSYS2" $msysPath
+Set-SystemVariable "CABAL_DIR" $cabalDir
+Add-MachinePathItem "$ghcupPrefix\ghcup\bin"
+Add-MachinePathItem "$cabalDir\bin"
+
+Update-SessionEnvironment
+
+# Get 3 latest versions of GHC
+$Versions = ghcup list -t ghc -r | Where-Object {$_ -notlike "prerelease"}
+$VersionsOutput = [Version[]]($Versions | ForEach-Object{ $_.Split(' ')[1]; })
+$LatestMajorMinor = $VersionsOutput | Group-Object { $_.ToString(2) } | Sort-Object { [Version]$_.Name } | Select-Object -last 3
+$VersionsList = $LatestMajorMinor | ForEach-Object { $_.Group | Select-Object -Last 1 } | Sort-Object
+
+# The latest version will be installed as a default
+ForEach ($version in $VersionsList)
+{
+    Write-Host "Installing ghc $version..."
+    ghcup install ghc $version
+    ghcup set ghc $version
+}
+
+# Add default version of GHC to path
+$DefaultGhcVersion = $VersionsList | Select-Object -Last 1
+ghcup set ghc $DefaultGhcVersion
+
+Write-Host 'Installing cabal...'
+ghcup install cabal latest
+
+Invoke-PesterTests -TestFile 'Haskell'