Show Xcode workspace clean output with verbose flag (#52860)

packages/flutter_tools/lib/src/ios/xcodeproj.dart

diff --git a/packages/flutter_tools/lib/src/ios/xcodeproj.dart b/packages/flutter_tools/lib/src/ios/xcodeproj.dart
index 0c8b643..09081ec 100644
--- a/packages/flutter_tools/lib/src/ios/xcodeproj.dart
+++ b/packages/flutter_tools/lib/src/ios/xcodeproj.dart
@@ -364,14 +364,15 @@
     }
   }
 
-  Future<void> cleanWorkspace(String workspacePath, String scheme) async {
+  Future<void> cleanWorkspace(String workspacePath, String scheme, { bool verbose = false }) async {
     await _processUtils.run(<String>[
       _executable,
       '-workspace',
       workspacePath,
       '-scheme',
       scheme,
-      '-quiet',
+      if (!verbose)
+        '-quiet',
       'clean',
       ...environmentVariablesAsXcodeBuildSettings(_platform)
     ], workingDirectory: _fileSystem.currentDirectory.path);