Компилятор падает, если элемент перечисления это побитовая операция других полей

[samuraiGH]

type
  enum = (
    item1,
    item2,
    item3 = item1 or item2
  );

begin end.

Внутренняя ошибка компилятора в модуле [pabcnetc.exe] :'System.Exception: System.NullReferenceException: Ссылка на объект не указывает на экземпляр объекта.
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.find_operator(String name, expression_node left, expression_node right, location loc, Boolean no_search_in_extension_methods)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.visit(bin_expr _bin_expr)
   в PascalABCCompiler.TreeConverter.returner.visit(expression expr)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.convert_strong(expression expr)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.convert_strong_to_constant_node(expression expr, type_node tn)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.visit(enum_type_definition _enum_type_definition)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.convert_strong(type_definition type_def)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.visit(type_declaration _type_declaration)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.visit(type_declarations _type_declarations)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.visit(declarations _subprogram_definitions)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.visit(block _block)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.visit(program_module _program_module)
   в PascalABCCompiler.TreeConverter.SyntaxTreeToSemanticTreeConverter.CompileInterface(compilation_unit SyntaxUnit, unit_node_list UsedUnits, List`1 ErrorsList, List`1 WarningsList, SyntaxError parser_error, Hashtable bad_nodes, using_namespace_list namespaces, Dictionary`2 docs, Boolean debug, Boolean debugging, Boolean for_intellisense, List`1 CompiledVariables)
   в PascalABCCompiler.Compiler.CompileCurrentUnitInterface(String UnitFileName, CompilationUnit currentUnit, Dictionary`2 docs)
   в PascalABCCompiler.Compiler.CompileUnit(unit_node_list unitsFromUsesSection, Dictionary`2 directUnitsFromUsesSection, unit_or_namespace currentUnitNode, String previousPath)
   в PascalABCCompiler.Compiler.Compile() System.Exception: System.NullReferenceException: Ссылка на объект не указывает на экземпляр объекта.
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.find_operator(String name, expression_node left, expression_node right, location loc, Boolean no_search_in_extension_methods)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.visit(bin_expr _bin_expr)
   в PascalABCCompiler.TreeConverter.returner.visit(expression expr)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.convert_strong(expression expr)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.convert_strong_to_constant_node(expression expr, type_node tn)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.visit(enum_type_definition _enum_type_definition)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.convert_strong(type_definition type_def)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.visit(type_declaration _type_declaration)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.visit(type_declarations _type_declarations)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.visit(declarations _subprogram_definitions)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.visit(block _block)
   в PascalABCCompiler.TreeConverter.syntax_tree_visitor.visit(program_module _program_module)
   в PascalABCCompiler.TreeConverter.SyntaxTreeToSemanticTreeConverter.CompileInterface(compilation_unit SyntaxUnit, unit_node_list UsedUnits, List`1 ErrorsList, List`1 WarningsList, SyntaxError parser_error, Hashtable bad_nodes, using_namespace_list namespaces, Dictionary`2 docs, Boolean debug, Boolean debugging, Boolean for_intellisense, List`1 CompiledVariables)
   в PascalABCCompiler.Compiler.CompileCurrentUnitInterface(String UnitFileName, CompilationUnit currentUnit, Dictionary`2 docs)
   в PascalABCCompiler.Compiler.CompileUnit(unit_node_list unitsFromUsesSection, Dictionary`2 directUnitsFromUsesSection, unit_or_namespace currentUnitNode, String previousPath)
   в PascalABCCompiler.Compiler.Compile()'