Fixed InvalidCastException when executing "Find references" on local variable.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@3293 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/Main/Base/Project/Src/Services/RefactoringService/LocalVariableRefactoring.cs

@@ -16,7 +16,8 @@ namespace ICSharpCode.SharpDevelop.Refactoring
 	{
 		public override void Run()
 		{
-			LocalResolveResult local = (LocalResolveResult)Owner;
+			RefactoringMenuContext context = (RefactoringMenuContext)Owner;
+			LocalResolveResult local = (LocalResolveResult)context.ResolveResult;
 			FindReferencesAndRenameHelper.ShowAsSearchResults(
 				StringParser.Parse("${res:SharpDevelop.Refactoring.ReferencesTo}",
 				                   new string[,] {{ "Name", local.VariableName }}),
@@ -29,7 +30,8 @@ namespace ICSharpCode.SharpDevelop.Refactoring
 	{
 		public override void Run()
 		{
-			Run((LocalResolveResult)Owner);
+			RefactoringMenuContext context = (RefactoringMenuContext)Owner;
+			Run((LocalResolveResult)context.ResolveResult);
 		}
 		
 		public static void Run(LocalResolveResult local)

src/Main/Base/Project/Src/Services/RefactoringService/RefactoringService.cs

@@ -139,9 +139,9 @@ namespace ICSharpCode.SharpDevelop.Refactoring
 		                                         IProgressMonitor progressMonitor)
 		{
 			if (ParserService.LoadSolutionProjectsThreadRunning) {
-				progressMonitor.ShowingDialog = true;
+				if (progressMonitor != null) progressMonitor.ShowingDialog = true;
 				MessageService.ShowMessage("${res:SharpDevelop.Refactoring.LoadSolutionProjectsThreadRunning}");
-				progressMonitor.ShowingDialog = false;
+				if (progressMonitor != null) progressMonitor.ShowingDialog = false;
 				return null;
 			}
 			List<ProjectItem> files;