Revert "Revert "Upgrade to 5.0.71.48"" DO NOT MERGE

This reverts commit f2e3994fa5148cc3d9946666f0b0596290192b0e,
and updates the x64 makefile properly so it doesn't break that
build.

FPIIM-449

Change-Id: Ib83e35bfbae6af627451c926a9650ec57c045605
(cherry picked from commit 109988c7ccb6f3fd1a58574fa3dfb88beaef6632)
diff --git a/src/heap/scavenger-inl.h b/src/heap/scavenger-inl.h
index cd35c7d..b8fd1c8 100644
--- a/src/heap/scavenger-inl.h
+++ b/src/heap/scavenger-inl.h
@@ -28,7 +28,7 @@
     return;
   }
 
-  object->GetHeap()->UpdateAllocationSite(
+  object->GetHeap()->UpdateAllocationSite<Heap::kGlobal>(
       object, object->GetHeap()->global_pretenuring_feedback_);
 
   // AllocationMementos are unrooted and shouldn't survive a scavenge