Remove (untested) code for unsupported compilers.

test/cctest/test-serialize.cc

 // Copyright 2007-2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 227 matching lines @@
 
 static void ReserveSpaceForSnapshot(Deserializer* deserializer,
                                     const char* file_name) {
   int file_name_length = StrLength(file_name) + 10;
   Vector<char> name = Vector<char>::New(file_name_length + 1);
   SNPrintF(name, "%s.size", file_name);
   FILE* fp = v8::base::OS::FOpen(name.start(), "r");
   name.Dispose();
   int new_size, pointer_size, data_size, code_size, map_size, cell_size,
       property_cell_size, lo_size;
-#ifdef _MSC_VER
+#if V8_CC_MSVC
   // Avoid warning about unsafe fscanf from MSVC.
   // Please note that this is only fine if %c and %s are not being used.
 #define fscanf fscanf_s
 #endif
   CHECK_EQ(1, fscanf(fp, "new %d\n", &new_size));
   CHECK_EQ(1, fscanf(fp, "pointer %d\n", &pointer_size));
   CHECK_EQ(1, fscanf(fp, "data %d\n", &data_size));
   CHECK_EQ(1, fscanf(fp, "code %d\n", &code_size));
   CHECK_EQ(1, fscanf(fp, "map %d\n", &map_size));
   CHECK_EQ(1, fscanf(fp, "cell %d\n", &cell_size));
   CHECK_EQ(1, fscanf(fp, "property cell %d\n", &property_cell_size));
   CHECK_EQ(1, fscanf(fp, "lo %d\n", &lo_size));
-#ifdef _MSC_VER
+#if V8_CC_MSVC
 #undef fscanf
 #endif
   fclose(fp);
   deserializer->AddReservation(NEW_SPACE, new_size);
   deserializer->AddReservation(OLD_POINTER_SPACE, pointer_size);
   deserializer->AddReservation(OLD_DATA_SPACE, data_size);
   deserializer->AddReservation(CODE_SPACE, code_size);
   deserializer->AddReservation(MAP_SPACE, map_size);
   deserializer->AddReservation(CELL_SPACE, cell_size);
   deserializer->AddReservation(PROPERTY_CELL_SPACE, property_cell_size);
@@ skipping 1000 matching lines @@
     {
       DisallowCompilation no_compile(reinterpret_cast<Isolate*>(isolate2));
       script = v8::ScriptCompiler::CompileUnbound(
           isolate2, &source, v8::ScriptCompiler::kConsumeCodeCache);
     }
     v8::Local<v8::Value> result = script->BindToCurrentContext()->Run();
     CHECK(result->ToString()->Equals(v8_str("XY")));
   }
   isolate2->Dispose();
 }