Refactor java.lang.reflect implementation

Cherry-picked from commit ed41d5c44299ec5d44b8514f6e17f802f48094d1.

Move to ArtMethod/Field instead of AbstractMethod/Field and have
java.lang.reflect APIs delegate to ArtMethod/ArtField.

Bug: 10014286.

Change-Id: Iafc1d8c5b62562c9af8fb9fd8c5e1d61270536e7
diff --git a/dex2oat/dex2oat.cc b/dex2oat/dex2oat.cc
index b85378d..c372d00 100644
--- a/dex2oat/dex2oat.cc
+++ b/dex2oat/dex2oat.cc
@@ -37,7 +37,7 @@
 #include "gc/space/space-inl.h"
 #include "image_writer.h"
 #include "leb128.h"
-#include "mirror/abstract_method-inl.h"
+#include "mirror/art_method-inl.h"
 #include "mirror/class-inl.h"
 #include "mirror/class_loader.h"
 #include "mirror/object-inl.h"
@@ -862,7 +862,7 @@
   // give it away now and then switch to a more managable ScopedObjectAccess.
   Thread::Current()->TransitionFromRunnableToSuspended(kNative);
   // Whilst we're in native take the opportunity to initialize well known classes.
-  WellKnownClasses::InitClasses(Thread::Current()->GetJniEnv());
+  WellKnownClasses::Init(Thread::Current()->GetJniEnv());
   ScopedObjectAccess soa(Thread::Current());
 
   // If --image-classes was specified, calculate the full list of classes to include in the image