Ad #316: Error when running Search for issues with Automatically Fix enabled.

Add SupportsAutoFix (default = false) property to prevent issues from trying to 'fix' code which cannot be fixed without user interaction.

src/AddIns/BackendBindings/CSharpBinding/Project/Src/Refactoring/SearchForIssuesCommand.cs

@@ -226,7 +226,7 @@ namespace CSharpBinding.Refactoring
 				cancellationToken.ThrowIfCancellationRequested();
 				var issues = provider.GetIssues(context).ToList();
 				// Fix issues, if possible:
-				if (issues.Any(i => i.Actions.Count > 0)) {
+				if (provider.Attribute.SupportsAutoFix && issues.Any(i => i.Actions.Count > 0)) {
 					using (var script = context.StartScript()) {
 						foreach (var issue in issues) {
 							if (issue.Actions.Count > 0) {

src/Libraries/NRefactory/ICSharpCode.NRefactory.CSharp/Refactoring/IssueAttribute.cs

@@ -41,6 +41,7 @@ namespace ICSharpCode.NRefactory.CSharp
 		public string SuppressMessageCheckId { get; set; }
 		public int PragmaWarning { get; set; }
 		public bool IsEnabledByDefault { get; set; }
+		public bool SupportsAutoFix { get; set; }
 
 		public Severity Severity { get; set; }