Simpler and better inlined type checks as discussed. Changed inline type test cache arrays to conta…

runtime/vm/stub_code_x64.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/code_generator.h"
 #include "vm/compiler.h"
 #include "vm/object_store.h"
@@ skipping 1765 matching lines @@
   __ movq(R10, FieldAddress(R10, Class::super_type_offset()));
   // The supertype of Object is a null object.
   __ cmpq(R10, raw_null);
   __ j(EQUAL, &not_found, Assembler::kNearJump);
   __ movq(R10, FieldAddress(R10, Type::type_class_offset()));
   __ cmpq(RCX, R10);
   __ j(NOT_EQUAL, &super_loop, Assembler::kNearJump);
   __ jmp(&found, Assembler::kNearJump);
 }
 
+
+void StubCode::GenerateSubtypeTestCacheStub(Assembler* assembler) {
+  __ Unimplemented("SubtypeTestCache Stub");
+}
+
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64