ART: Rename ArtMethod's size and alignment methods.

Remove the historical prefix "Object" to avoid confusion
with Java objects.

Change-Id: Ib36422c9a24878d8d4bd757977d99cbf66b3d567
diff --git a/runtime/fault_handler.cc b/runtime/fault_handler.cc
index 47f9b1b..c3a9627 100644
--- a/runtime/fault_handler.cc
+++ b/runtime/fault_handler.cc
@@ -331,7 +331,7 @@
   // If we don't have a potential method, we're outta here.
   VLOG(signals) << "potential method: " << method_obj;
   // TODO: Check linear alloc and image.
-  DCHECK_ALIGNED(ArtMethod::ObjectSize(sizeof(void*)), sizeof(void*))
+  DCHECK_ALIGNED(ArtMethod::Size(sizeof(void*)), sizeof(void*))
       << "ArtMethod is not pointer aligned";
   if (method_obj == nullptr || !IsAligned<sizeof(void*)>(method_obj)) {
     VLOG(signals) << "no method";