Escape compiler-generated names in tests

ICSharpCode.Decompiler/Tests/Helpers/RemoveCompilerAttribute.cs

@@ -34,4 +34,32 @@ namespace ICSharpCode.Decompiler.Tests.Helpers
 			node.AcceptVisitor(this, null);
 		}
 	}
+	
+	class EscapeGeneratedIdentifiers : DepthFirstAstVisitor<object, object>
+	{
+		bool IsValid(char ch)
+		{
+			if (char.IsLetterOrDigit(ch))
+				return true;
+			if (ch == '_')
+				return true;
+			return false;
+		}
+		
+		string ReplaceInvalid(string s)
+		{
+			return string.Concat(s.Select(ch => IsValid(ch) ? ch.ToString() : string.Format("_{0:0000X}", (int)ch)));
+		}
+		
+		public override object VisitIdentifier(Identifier identifier, object data)
+		{
+			identifier.Name = ReplaceInvalid(identifier.Name);
+			return null;
+		}
+
+		public void Run(AstNode node)
+		{
+			node.AcceptVisitor(this, null);
+		}
+	}
 }

ICSharpCode.Decompiler/Tests/Helpers/Tester.cs

@@ -67,6 +67,7 @@ namespace ICSharpCode.Decompiler.Tests.Helpers
 			CSharpDecompiler decompiler = new CSharpDecompiler(typeSystem);
 			var syntaxTree = decompiler.DecompileWholeModuleAsSingleFile();
 			new Helpers.RemoveCompilerAttribute().Run(syntaxTree);
+			new Helpers.EscapeGeneratedIdentifiers().Run(syntaxTree);
 			
 			StringWriter output = new StringWriter();
 			var visitor = new CSharpOutputVisitor(output, FormattingOptionsFactory.CreateSharpDevelop());