wbemprox: Return NULL for Win32_BIOS.IdentificationCode.

dlls/wbemprox/builtin.c

@@ -1066,7 +1066,7 @@ static const struct record_baseboard data_baseboard[] =
 };
 static const struct record_bios data_bios[] =
 {
-    { bios_descriptionW, bios_descriptionW, bios_manufacturerW, bios_nameW, bios_releasedateW, bios_serialnumberW,
+    { bios_descriptionW, NULL, bios_manufacturerW, bios_nameW, bios_releasedateW, bios_serialnumberW,
       bios_smbiosbiosversionW, bios_versionW }
 };
 static const struct record_computersystemproduct data_compsysproduct[] =

dlls/wbemprox/tests/query.c

@@ -310,7 +310,6 @@ static void test_Win32_Bios( IWbemServices *services )
     VariantInit( &val );
     hr = IWbemClassObject_Get( obj, identificationcodeW, 0, &val, &type, NULL );
     ok( hr == S_OK, "failed to get identication code %08x\n", hr );
-    todo_wine
     ok( V_VT( &val ) == VT_NULL, "unexpected variant type 0x%x\n", V_VT( &val ) );
     ok( type == CIM_STRING, "unexpected type 0x%x\n", type );
     VariantClear( &val );