Fix #202: choco install ghc --ignore-dependencies

Passing `--ignore-dependencies` prevents choco from automatically
installing the latest cabal, which would conflict with a subsequent
explicit installation of cabal.

Author: andreasabel

setup/dist/index.js

@@ -273,9 +273,16 @@ async function choco(tool: Tool, version: string): Promise<void> {
     tool,
     '--version',
     revision,
-    '-m',
+    // Andreas, 2023-03-13:
+    // Removing the following (deprecated) option confuses getChocoPath, so we keep it for now.
+    // TODO: remove this option and update ghc and cabal locations in getChocoPath.
+    '--allow-multiple-versions',
+    // Andreas, 2023-03-13, issue #202:
+    // When installing GHC, skip automatic cabal installation.
+    tool == 'ghc' ? '--ignore-dependencies' : '',
+    // Verbosity options:
     '--no-progress',
-    core.isDebug() ? '-d' : '-r'
+    core.isDebug() ? '--debug' : '--limit-output'
   ];
   if ((await exec('powershell', args)) !== 0)
     await exec('powershell', [...args, '--pre']);