Refactoring Binder

Src/AST/Myc.Ast.Nodes.pas

@@ -77,6 +77,7 @@ type
         function GetSymbols: TDictionary<string, Integer>;
         {$endregion}
         function CreateScope(const AParent: IExecutionScope): IExecutionScope;
+        function Define(const Name: string): Integer;
         property Parent: IScopeDescriptor read GetParent;
         property SlotCount: Integer read GetSlotCount;
         property Symbols: TDictionary<string, Integer> read GetSymbols;
@@ -182,9 +183,11 @@ type
         {$region 'private'}
         function GetCallee: IAstNode;
         function GetArguments: TArray<IAstNode>;
+        function GetIsTailCall: Boolean;
         {$endregion}
         property Callee: IAstNode read GetCallee;
         property Arguments: TArray<IAstNode> read GetArguments;
+        property IsTailCall: Boolean read GetIsTailCall;
     end;
 
     IBlockExpressionNode = interface(IAstNode)