fix debugger symbols for decompiled code

src/AddIns/DisplayBindings/ILSpyAddIn/DebuggerTextOutput.cs

@@ -6,6 +6,7 @@ using System.Collections.Generic;
 using System.Linq;
 using ICSharpCode.Core;
 using ICSharpCode.Decompiler;
+using ICSharpCode.Decompiler.ILAst;
 using ICSharpCode.NRefactory.CSharp;
 using Mono.Cecil;
 
@@ -41,10 +42,23 @@ namespace ICSharpCode.ILSpyAddIn
 			if (node is EntityDeclaration && node.Annotation<MemberReference>() != null) {
 				MemberLocations[XmlDocKeyProvider.GetKey(node.Annotation<MemberReference>())] = node.StartLocation;
 			}
+			
+			// code mappings
+			var ranges = node.Annotation<List<ILRange>>();
+			if (symbolsStack.Count > 0 && ranges != null && ranges.Count > 0) {
+				symbolsStack.Peek().SequencePoints.Add(
+					new SequencePoint() {
+						ILRanges = ILRange.OrderAndJoin(ranges).ToArray(),
+						StartLocation = node.StartLocation,
+						EndLocation = node.EndLocation
+					});
+			}
+			
 			if (node.Annotation<MethodDebugSymbols>() != null) {
 				var symbols = symbolsStack.Pop();
 				symbols.SequencePoints = symbols.SequencePoints.OrderBy(s => s.ILOffset).ToList();
 				symbols.StartLocation = node.StartLocation;
+				symbols.EndLocation = node.EndLocation;
 				DebugSymbols[XmlDocKeyProvider.GetKey(symbols.CecilMethod)] = symbols;
 			}
 		}