fixed EvilBeaver#1498 Исправлена обработка вложенных попыток

Author: EvilBeaver

src/ScriptEngine/Compiler/StackMachineCodeGenerator.cs

@@ -885,7 +885,7 @@ protected override void VisitTryExceptNode(TryExceptNode node)
             var endIndex = AddLineNumber(node.EndLocation.LineNumber,
                 CodeGenerationFlags.CodeStatistics | CodeGenerationFlags.DebugCode);
 
-            AddCommand(OperationCode.EndTry);
+            AddCommand(OperationCode.EndTry, beginHandler);
             CorrectCommandArgument(jmpIndex, endIndex);
         }
 

src/ScriptEngine/Machine/MachineInstance.cs

@@ -1227,8 +1227,12 @@ private void BeginTry(int exceptBlockAddress)
 
         private void EndTry(int arg)
         {
-            if (_exceptionsStack.Count > 0 && _exceptionsStack.Peek().HandlerFrame == _currentFrame)
-                _exceptionsStack.Pop();
+            if (_exceptionsStack.Count > 0)
+            {
+                var jmpInfo = _exceptionsStack.Peek();
+                if (jmpInfo.HandlerFrame == _currentFrame && arg == jmpInfo.HandlerAddress)
+                    _exceptionsStack.Pop();
+            }
             _currentFrame.LastException = null;
             NextInstruction();
         }