Restructure instance calls in optimizing compiler.

vm/ic_data_test.cc

 // Copyright (c) 2011, 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/ic_data.h"
 #include "vm/code_index_table.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
@@ skipping 36 matching lines @@
   classes.Add(&smi_class);
   ic_data.AddCheck(classes, target);
 
   EXPECT_EQ(1, ic_data.NumberOfArgumentsChecked());
   EXPECT_EQ(1, ic_data.NumberOfChecks());
   EXPECT_EQ(name.raw(), ic_data.FunctionName());
 
   GrowableArray<const Class*> test_classes;
   Function& test_target = Function::Handle();
   ic_data.GetCheckAt(0, &test_classes, &test_target);
+  Class& test_class_1 = Class::Handle();
+  Function& test_target_1 = Function::Handle();
+  ic_data.GetOneClassCheckAt(0, &test_class_1, &test_target_1);
 
   EXPECT(SameClassArrays(classes, test_classes));
+  EXPECT_EQ(test_classes[0]->raw(), test_class_1.raw());
   EXPECT_EQ(target.raw(), test_target.raw());
+  EXPECT_EQ(test_target.raw(), test_target_1.raw());
 
   const Function& new_target =
        Function::Handle(GetDummyTarget(name.ToCString()));
   ic_data.SetCheckAt(0, classes, new_target);
   ic_data.GetCheckAt(0, &test_classes, &test_target);
 
   EXPECT(SameClassArrays(classes, test_classes));
   EXPECT_EQ(new_target.raw(), test_target.raw());
 }
 
 }  // namespace dart