Error in GTK+

NodesCodegen.cpp - with error

// ------------------------------ SuperNode -------------------------------------

RegisterID* SuperNode::emitBytecode(BytecodeGenerator& generator, RegisterID* dst)
{
    if (dst == generator.ignoredResult())
        return 0;

    RegisterID* scopeId;
    if (generator.isDerivedConstructorContext()) {
        scopeId = generator.emitLoadDerivedConstructorFromArrowFunctionLexicalEnvironment();
    } else {
        RegisterID callee;
        callee.setIndex(JSStack::Callee);
        scopeId = &callee;
    }

    return generator.emitGetById(generator.finalDestination(dst), scopeId, generator.propertyNames().underscoreProto);
}

NodesCodegen.cpp - without arrow function fix

RegisterID* SuperNode::emitBytecode(BytecodeGenerator& generator, RegisterID* dst)
{
    if (dst == generator.ignoredResult())
        return 0;
        
    RegisterID callee;
    callee.setIndex(JSStack::Callee);

    return generator.emitGetById(generator.finalDestination(dst), &callee, generator.propertyNames().underscoreProto);
}

NodesCodegen.cpp - without error

// ------------------------------ SuperNode -------------------------------------

RegisterID* SuperNode::emitBytecode(BytecodeGenerator& generator, RegisterID* dst)
{
    if (dst == generator.ignoredResult())
        return 0;

    RegisterID* scopeId;
    if (generator.isDerivedConstructorContext()) {
        scopeId = generator.emitLoadDerivedConstructorFromArrowFunctionLexicalEnvironment();
    } else {
       // RegisterID callee;
       // scopeId = &callee;
        scopeId = new RegisterID();
        scopeId->setIndex(JSStack::Callee);
    }

    return generator.emitGetById(generator.finalDestination(dst), scopeId, generator.propertyNames().underscoreProto);
}