Unboxed Float64x2 fields and some misc fixes

runtime/vm/flow_graph_compiler.cc

 // Copyright (c) 2013, 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"  // Needed here to get TARGET_ARCH_XXX.
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/cha.h"
 #include "vm/dart_entry.h"
@@ skipping 563 matching lines @@
       intptr_t index = fpu_reg_slots[loc.fpu_reg()];
       ASSERT(index >= 0);
       Value* value = it.CurrentValue();
       switch (value->definition()->representation()) {
         case kUnboxedDouble:
         case kUnboxedMint:
           it.SetCurrentLocation(Location::DoubleStackSlot(index));
           break;
         case kUnboxedFloat32x4:
         case kUnboxedInt32x4:
+        case kUnboxedFloat64x2:
           it.SetCurrentLocation(Location::QuadStackSlot(index));
           break;
         default:
           UNREACHABLE();
       }
     }
   }
 
   return env;
 }
@@ skipping 664 matching lines @@
 
   for (int i = 0; i < len; i++) {
     sorted->Add(CidTarget(ic_data.GetReceiverClassIdAt(i),
                           &Function::ZoneHandle(ic_data.GetTargetAt(i)),
                           ic_data.GetCountAt(i)));
   }
   sorted->Sort(HighestCountFirst);
 }
 
 }  // namespace dart