using namespace System;

//#using <System.Core.dll>

class A
{
public:
    const wchar_t* F() { return L""; }
};

String^ readUnicodeString(A& msg)
{
    const wchar_t* text = msg.F();
    String^ str = gcnew String(text); // <<< ICE указывает сюда
    return str;
}

int main() {}

1>fatal error C1001: An internal error has occurred in the compiler.
1>  (compiler file 'f:\dd\vctools\compiler\utc\src\p2\main.c[0x6396E0DB:0x00000030]', line 182)
1>   To work around this problem, try simplifying or changing the program near the locations listed above.
1>  Please choose the Technical Support command on the Visual C++
1>   Help menu, or open the Technical Support help file for more information
1>  INTERNAL COMPILER ERROR in 'C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\bin\CL.exe'
1>      Please choose the Technical Support command on the Visual C++
1>      Help menu, or open the Technical Support help file for more information

using namespace System;

#using <System.Core.dll>

String^ make(const wchar_t* m) { return gcnew String(m); }

int main() {}

__inline String^ make(const wchar_t* m) { return gcnew String(m); }

#using <System.Core.dll>


class A 
{
public:
    const wchar_t* F() { return L""; }
};

__inline String^ X(A& msg)
{
    const wchar_t* text = msg.F();
    String^ str = gcnew String(text);
    return str;
}

    inline System::String ^ ToString( PCWSTR value )
    {
        return System::Runtime::InteropServices::Marshal::PtrToStringUni((IntPtr)(void*)value);
    }

R>    inline System::String ^ ToString( PCWSTR value )
R>    {
R>        return System::Runtime::InteropServices::Marshal::PtrToStringUni((IntPtr)(void*)value);
R>    }

R>

using namespace System;
using namespace System::Runtime::InteropServices;

#using <System.Core.dll>

const wchar_t* F = L"";

String^ makeStringFromLiteral(const wchar_t* value)
{
    return Marshal::PtrToStringUni(IntPtr(const_cast<void*>(static_cast<const void*>(value))));
}

String^ r()
{
    const wchar_t* text = F;
    String^ str = makeStringFromLiteral(text);
    return str;
}

int main()
{
    String^ x = r();
    //if(x->Length == 0) {}
}