Merge pull request #8543 from heejaechang/preventcrash

fix crash.

src/VisualStudio/Core/Def/Implementation/Diagnostics/VisualStudioVenusSpanMappingService.cs

@@ -52,7 +52,8 @@ public VisualStudioVenusSpanMappingService(VisualStudioWorkspaceImpl workspace)
                 var textLines = location.SourceTree.GetText().Lines;
                 var startPos = textLines.GetPosition(originalSpan.Start);
                 var endPos = textLines.GetPosition(originalSpan.End);
-                sourceSpan = new TextSpan(startPos, endPos - startPos);
+
+                sourceSpan = TextSpan.FromBounds(startPos, Math.Max(startPos, endPos));
             }
 
             if (mappedSpan.Start != mappedLineInfo.StartLinePosition || mappedSpan.End != mappedLineInfo.EndLinePosition)