[Fact]
        public void Test1234567()
        {
            var ilSource = @"
.class public auto ansi beforefieldinit C1`1<T>
    extends System.Object
{
    // Methods
    .method public hidebysig static 
        string Method () cil managed 
    {
        // Method begins at RVA 0x2050
        // Code size 6 (0x6)
        .maxstack 8

        IL_0000: ldstr ""Method""
        IL_0005: ret
    } // end of method C1`1::Method

    .method public hidebysig specialname rtspecialname 
        instance void .ctor () cil managed 
    {
        // Method begins at RVA 0x2057
        // Code size 7 (0x7)
        .maxstack 8

        IL_0000: ldarg.0
        IL_0001: call instance void System.Object::.ctor()
        IL_0006: ret
    } // end of method C1`1::.ctor

} // end of class C1`1

.class public auto ansi beforefieldinit C2`1<T>
    extends System.Object
{
    // Methods
    .method public hidebysig specialname rtspecialname 
        instance void .ctor () cil managed 
    {
        // Method begins at RVA 0x2057
        // Code size 7 (0x7)
        .maxstack 8

        IL_0000: ldarg.0
        IL_0001: call instance void System.Object::.ctor()
        IL_0006: ret
    } // end of method C2`1::.ctor

} // end of class C2`1

.class public auto ansi beforefieldinit C3`1<T>
    extends class C1`1<int32 modopt(class C2`1<!T>)>
{
    // Methods
    .method public hidebysig specialname rtspecialname 
        instance void .ctor () cil managed 
    {
        // Method begins at RVA 0x205f
        // Code size 7 (0x7)
        .maxstack 8

        IL_0000: ldarg.0
        IL_0001: call instance void class C1`1<int32>::.ctor()
        IL_0006: ret
    } // end of method C3`1::.ctor

} // end of class C3`1
";

            var source = @"
class Test
{
    static void Main()
    {
        M<int>();
    }

    static void M<T>()
    {
        System.Func<string> x = C3<T>.Method;
        System.Console.WriteLine(x());
    }
}
";
            var compilation = CreateCompilationWithIL(source, ilSource, options: TestOptions.ReleaseExe);

            CompileAndVerify(compilation, expectedOutput: @"Method");
        }

Microsoft.CodeAnalysis.CSharp.UnitTests.CodeGen.CodeGenNullCheckedParameterTests.Test1234567 [FAIL]
  System.MissingMethodException : Method not found: 'System.String C2`1.Method()'.
  Stack Trace:
       at Test.M[T]()
       at Test.Main()

.method private hidebysig static void  M<T>() cil managed
{
  // Code size       23 (0x17)
  .maxstack  8
  IL_0000:  ldnull
  IL_0001:  ldftn      string class ['_0_e06aa5d9-06de-47fb-898c-85f1b5e9d746']C2`1<!!T>::Method()
  IL_0007:  newobj     instance void class [mscorlib]System.Func`1<string>::.ctor(object,
                                                                                  native int)
  IL_000c:  callvirt   instance !0 class [mscorlib]System.Func`1<string>::Invoke()
  IL_0011:  call       void [mscorlib]System.Console::WriteLine(string)
  IL_0016:  ret
} // end of method Test::M