#2109: Skip id ranges with no events

ILSpy.BamlDecompiler/Rewrite/ConnectionIdRewritePass.cs

@@ -139,15 +139,19 @@ namespace ILSpy.BamlDecompiler.Rewrite
 			var block = function.Body.Children.OfType<Block>().First();
 			var ilSwitch = block.Descendants.OfType<SwitchInstruction>().FirstOrDefault();
 
+			var events = new List<EventRegistration>();
 			if (ilSwitch != null)
 			{
 				foreach (var section in ilSwitch.Sections)
 				{
-					var events = new List<EventRegistration>();
+					events.Clear();
 					FindEvents(section.Body, events);
+					if (events.Count > 0)
+					{
 						result.Add((section.Labels, events.ToArray()));
 					}
 				}
+			}
 			else
 			{
 				foreach (var ifInst in function.Descendants.OfType<IfInstruction>())
@@ -161,12 +165,15 @@ namespace ILSpy.BamlDecompiler.Rewrite
 					var inst = comp.Kind == ComparisonKind.Inequality
 						? ifInst.FalseInst
 						: ifInst.TrueInst;
-					var events = new List<EventRegistration>();
+					events.Clear();
 					FindEvents(inst, events);
+					if (events.Count > 0)
+					{
 						result.Add((new LongSet(id), events.ToArray()));
 					}
 				}
 			}
+		}
 
 		void FindEvents(ILInstruction inst, List<EventRegistration> events)
 		{