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/runtime/oat_test.cc b/runtime/oat_test.cc
index 68595c8..74b5da9 100644
--- a/runtime/oat_test.cc
+++ b/runtime/oat_test.cc
@@ -15,7 +15,7 @@
  */
 
 #include "compiler/oat_writer.h"
-#include "mirror/abstract_method-inl.h"
+#include "mirror/art_method-inl.h"
 #include "mirror/class-inl.h"
 #include "mirror/object_array-inl.h"
 #include "mirror/object-inl.h"
@@ -28,7 +28,7 @@
 
 class OatTest : public CommonTest {
  protected:
-  void CheckMethod(mirror::AbstractMethod* method,
+  void CheckMethod(mirror::ArtMethod* method,
                    const OatFile::OatMethod& oat_method,
                    const DexFile* dex_file)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {