Fix regressions caused by TextWithMarkers change

MonoDevelop.MSBuild.Editor/Analysis/EditTextActionOperation.cs

@@ -254,7 +254,7 @@ public static Edit WithMarkedSelection (EditKind kind, TextSpan span, string tex
 						if (spanStart < 0) {
 							spanStart = cleanTextBuilder.Length;
 						} else {
-							spans.Add (new TextSpan (spanStart, cleanTextBuilder.Length));
+							spans.Add (TextSpan.FromBounds (spanStart, cleanTextBuilder.Length));
 							spanStart = -1;
 						}
 					} else {

MonoDevelop.MSBuild.Tests.Editor/Refactorings/MSBuildEditorTestExtensions.cs

@@ -21,6 +21,8 @@
 using MonoDevelop.Xml.Tests;
 using MonoDevelop.Xml.Tests.Utils;
 
+using TextSpan = MonoDevelop.Xml.Dom.TextSpan;
+
 using NUnit.Framework;
 
 namespace MonoDevelop.MSBuild.Tests.Editor
@@ -50,16 +52,17 @@ public static Task<CodeFixesWithContext> GetRefactorings<T> (this MSBuildEditorT
 			where T : MSBuildRefactoringProvider, new()
 		{
 			var refactoringService = new MSBuildRefactoringService (new[] { new T () });
-			var textView = test.CreateTextViewWithSelection (documentWithSelection, selectionMarker);
+			var textView = test.CreateTextViewWithSelection (documentWithSelection, selectionMarker, allowZeroWidthSingleMarker: true);
 
 			return test.GetRefactorings (refactoringService, textView, cancellationToken);
 		}
 
-		public static ITextView CreateTextViewWithSelection (this MSBuildEditorTest test, string documentWithSelection, char selectionMarker)
+		public static ITextView CreateTextViewWithSelection (this MSBuildEditorTest test, string documentWithSelection, char selectionMarker, bool allowZeroWidthSingleMarker = false)
 		{
 			var parsed = TextWithMarkers.Parse (documentWithSelection, selectionMarker);
+
 			var text = parsed.Text;
-			var selection = parsed.GetMarkedSpan (selectionMarker);
+			TextSpan selection = parsed.GetMarkedSpan (selectionMarker, allowZeroWidthSingleMarker);
 
 			var textView = test.CreateTextView (text);
 
@@ -147,7 +150,7 @@ public static Task<CodeFixesWithContext> GetCodeFixes<TAnalyzer, TCodeFix> (
 			where TAnalyzer : MSBuildAnalyzer, new()
 			where TCodeFix : MSBuildFixProvider, new()
 		{
-			var textView = test.CreateTextViewWithSelection (documentWithSelection, selectionMarker);
+			var textView = test.CreateTextViewWithSelection (documentWithSelection, selectionMarker, allowZeroWidthSingleMarker: true);
 
 			return test.GetCodeFixes ([new TAnalyzer ()], [new TCodeFix ()], textView, textView.Selection.SelectedSpans.Single(), requestedSeverities, false, null, logger, cancellationToken);
 		}