Fixed bug that might have caused some code to be duplicated

ICSharpCode.Decompiler/ILAst/ILAstOptimizer.cs

@@ -194,6 +194,9 @@ namespace Decompiler.ControlFlow
 		{
 			List<ILNode> result = new List<ILNode>();
 			
+			// Do not modify entry data
+			scope = new HashSet<ControlFlowNode>(scope);
+			
 			Queue<ControlFlowNode> agenda  = new Queue<ControlFlowNode>();
 			agenda.Enqueue(entryPoint);
 			while(agenda.Count > 0) {
@@ -241,6 +244,7 @@ namespace Decompiler.ControlFlow
 			foreach(var node in scope) {
 				result.Add((ILNode)node.UserData);
 			}
+			scope.Clear();
 			
 			return result;
 		}
@@ -259,6 +263,9 @@ namespace Decompiler.ControlFlow
 		{
 			List<ILNode> result = new List<ILNode>();
 			
+			// Do not modify entry data
+			scope = new HashSet<ControlFlowNode>(scope);
+			
 			HashSet<ControlFlowNode> agenda  = new HashSet<ControlFlowNode>();
 			agenda.Add(entryNode);
 			while(agenda.Any()) {

ICSharpCode.Decompiler/ILAst/ILAstTypes.cs

@@ -30,7 +30,7 @@ namespace Decompiler
 		{
 			StringWriter w = new StringWriter();
 			WriteTo(new PlainTextOutput(w));
-			return w.ToString();
+			return w.ToString().Replace("\r\n", "; ");
 		}
 		
 		public abstract void WriteTo(ITextOutput output);