Add support for DefineDebug and DefineTrace MSBuild properties in CSharpProject

src/AddIns/BackendBindings/CSharpBinding/Project/Src/Project/CSharpProject.cs

@@ -170,6 +170,15 @@ namespace CSharpBinding
 					settings.ConditionalSymbols.Add(symbol.Trim());
 				}
 			}
+			
+			if (GetBoolProperty("DefineDebug") == true) {
+				settings.ConditionalSymbols.Add("DEBUG");
+			}
+			
+			if (GetBoolProperty("DefineTrace") == true) {
+				settings.ConditionalSymbols.Add("TRACE");
+			}
+			
 			settings.Freeze();
 			compilerSettings = settings;
 			return settings;