Replace linked list of loaded libraries

runtime/vm/code_generator_test.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 "platform/assert.h"
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_IA32) || defined(TARGET_ARCH_X64)
 
 #include "vm/ast.h"
 #include "vm/assembler.h"
@@ skipping 470 matching lines @@
       kPos, no_type_arguments, constructor, no_arguments, allocated)));
 }
 
 
 CODEGEN_TEST_RAW_RUN(AllocateNewObjectCodegen, function) {
   GrowableArray<const Object*> arguments;
   const Array& kNoArgumentNames = Array::Handle();
   Object& result = Object::Handle();
   result = DartEntry::InvokeStatic(function, arguments, kNoArgumentNames);
   EXPECT(!result.IsError());
-  const Library& app_lib = Library::Handle(
-      Isolate::Current()->object_store()->registered_libraries());
+  const GrowableObjectArray& libs =  GrowableObjectArray::Handle(
+      Isolate::Current()->object_store()->libraries());
+  ASSERT(!libs.IsNull());
+  // App lib is the last one that was loaded.
+  intptr_t num_libs = libs.Length();
+  Library& app_lib = Library::Handle();
+  app_lib ^= libs.At(num_libs - 1);
+  ASSERT(!app_lib.IsNull());
   const Class& cls = Class::Handle(
       app_lib.LookupClass(String::Handle(String::NewSymbol("A"))));
   EXPECT_EQ(cls.raw(), result.clazz());
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32 || defined(TARGET_ARCH_X64)