Slightly improve mapping from IL to source code

src/AddIns/Debugger/Debugger.Core/PdbSymbolSource.cs

@@ -28,10 +28,11 @@ namespace Debugger
 		
 		public override string ToString()
 		{
-			return string.Format("{0}:{1},{2}-{3},{4}",
+			return string.Format("{0}:{1},{2}-{3},{4} IL:{5}",
 			                     Path.GetFileName(this.Filename ?? string.Empty),
 			                     this.StartLine, this.StartColumn,
-			                     this.EndLine, this.EndColumn);
+			                     this.EndLine, this.EndColumn,
+			                     string.Join(" ", this.ILRanges));
 		}
 	}
 	
@@ -45,6 +46,11 @@ namespace Debugger
 			this.From = from;
 			this.To = to;
 		}
+		
+		public override string ToString()
+		{
+			return string.Format("{0:X2}-{1:X2}", From, To);
+		}
 	}
 	
 	public class ILLocalVariable

src/AddIns/Debugger/Debugger.Core/StackFrame.cs

@@ -156,6 +156,7 @@ namespace Debugger
 			List<ILRange> stepRanges = new List<ILRange>();
 			var seq = this.Module.SymbolSource.GetSequencePoint(this.MethodInfo, this.IP);
 			if (seq != null) {
+				Process.TraceMessage("Step over: {0}", seq);
 				stepRanges.AddRange(seq.ILRanges);
 				stepRanges.AddRange(this.Module.SymbolSource.GetIgnoredILRanges(this.MethodInfo));
 			}

src/AddIns/DisplayBindings/ILSpyAddIn/DebuggerTextOutput.cs

@@ -3,6 +3,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using ICSharpCode.Core;
 using ICSharpCode.Decompiler;
 using Mono.Cecil;
@@ -66,6 +67,7 @@ namespace ICSharpCode.ILSpyAddIn
 		public void AddDebugSymbols(MethodDebugSymbols methodDebugSymbols)
 		{
 			var id = XmlDocKeyProvider.GetKey(methodDebugSymbols.CecilMethod);
+			methodDebugSymbols.SequencePoints = methodDebugSymbols.SequencePoints.OrderBy(s => s.ILOffset).ToList();
 			this.DebugSymbols.Add(id, methodDebugSymbols);
 			output.AddDebugSymbols(methodDebugSymbols);
 		}

src/AddIns/DisplayBindings/ILSpyAddIn/ILSpySymbolSource.cs

@@ -15,7 +15,8 @@ namespace ICSharpCode.ILSpyAddIn
 	{
 		public static MethodDebugSymbols GetSymbols(IMethod method)
 		{
-			var id = IdStringProvider.GetIdString(method);
+			// Use the non-specialised method definition to look up decompiled symbols
+			var id = IdStringProvider.GetIdString(method.MemberDefinition);
 			var content = DecompiledViewContent.Get(method);
 			if (content != null && content.DebugSymbols.ContainsKey(id)) {
 				return content.DebugSymbols[id];
@@ -31,7 +32,11 @@ namespace ICSharpCode.ILSpyAddIn
 			
 			var content = DecompiledViewContent.Get(method);
 			var seq = symbols.SequencePoints.FirstOrDefault(p => p.ILRanges.Any(r => r.From <= iloffset && iloffset < r.To));
+			if (seq == null)
+				seq = symbols.SequencePoints.FirstOrDefault(p => iloffset <= p.ILOffset);
+			if (seq != null)
 				return seq.ToDebugger(symbols, content.VirtualFileName);
+			return null;
 		}
 		
 		public Debugger.SequencePoint GetSequencePoint(Module module, string filename, int line, int column)

src/AddIns/DisplayBindings/ILSpyAddIn/ViewContent/DecompiledViewContent.cs

@@ -13,6 +13,7 @@ using ICSharpCode.AvalonEdit.Highlighting;
 using ICSharpCode.Core;
 using ICSharpCode.Decompiler;
 using ICSharpCode.Decompiler.Ast;
+using ICSharpCode.Decompiler.Disassembler;
 using ICSharpCode.NRefactory.Documentation;
 using ICSharpCode.SharpDevelop.Gui;
 using ICSharpCode.ILSpyAddIn.LaunchILSpy;
@@ -235,6 +236,9 @@ namespace ICSharpCode.ILSpyAddIn
 			astBuilder.AddType(typeDefinition);
 			astBuilder.GenerateCode(textOutput);
 			
+			// ReflectionDisassembler disasm = new ReflectionDisassembler(textOutput, true, cancellationToken);
+			// disasm.DisassembleType(typeDefinition);
+			
 			// save decompilation data
 			memberLocations = textOutput.MemberLocations;
 			this.DebugSymbols = textOutput.DebugSymbols;