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/gc/accounting/mod_union_table.cc b/runtime/gc/accounting/mod_union_table.cc
index 0363acb..3bbc381 100644
--- a/runtime/gc/accounting/mod_union_table.cc
+++ b/runtime/gc/accounting/mod_union_table.cc
@@ -22,9 +22,9 @@
 #include "gc/collector/mark_sweep-inl.h"
 #include "gc/heap.h"
 #include "gc/space/space.h"
+#include "mirror/art_field-inl.h"
 #include "mirror/object-inl.h"
 #include "mirror/class-inl.h"
-#include "mirror/field-inl.h"
 #include "mirror/object_array-inl.h"
 #include "space_bitmap-inl.h"
 #include "thread.h"
diff --git a/runtime/gc/accounting/space_bitmap.cc b/runtime/gc/accounting/space_bitmap.cc
index 6edc067..702e162 100644
--- a/runtime/gc/accounting/space_bitmap.cc
+++ b/runtime/gc/accounting/space_bitmap.cc
@@ -17,8 +17,8 @@
 #include "base/logging.h"
 #include "dex_file-inl.h"
 #include "heap_bitmap.h"
+#include "mirror/art_field-inl.h"
 #include "mirror/class-inl.h"
-#include "mirror/field-inl.h"
 #include "mirror/object-inl.h"
 #include "mirror/object_array-inl.h"
 #include "object_utils.h"
@@ -182,10 +182,10 @@
     WalkInstanceFields(visited, callback, obj, super, arg);
   }
   // Walk instance fields
-  mirror::ObjectArray<mirror::Field>* fields = klass->GetIFields();
+  mirror::ObjectArray<mirror::ArtField>* fields = klass->GetIFields();
   if (fields != NULL) {
     for (int32_t i = 0; i < fields->GetLength(); i++) {
-      mirror::Field* field = fields->Get(i);
+      mirror::ArtField* field = fields->Get(i);
       FieldHelper fh(field);
       if (!fh.IsPrimitiveType()) {
         mirror::Object* value = field->GetObj(obj);
@@ -212,10 +212,10 @@
   WalkInstanceFields(visited, callback, obj, klass, arg);
   // Walk static fields of a Class
   if (obj->IsClass()) {
-    mirror::ObjectArray<mirror::Field>* fields = klass->GetSFields();
+    mirror::ObjectArray<mirror::ArtField>* fields = klass->GetSFields();
     if (fields != NULL) {
       for (int32_t i = 0; i < fields->GetLength(); i++) {
-        mirror::Field* field = fields->Get(i);
+        mirror::ArtField* field = fields->Get(i);
         FieldHelper fh(field);
         if (!fh.IsPrimitiveType()) {
           mirror::Object* value = field->GetObj(NULL);
diff --git a/runtime/gc/collector/mark_sweep-inl.h b/runtime/gc/collector/mark_sweep-inl.h
index 6b1b617..e158952 100644
--- a/runtime/gc/collector/mark_sweep-inl.h
+++ b/runtime/gc/collector/mark_sweep-inl.h
@@ -20,8 +20,8 @@
 #include "gc/collector/mark_sweep.h"
 
 #include "gc/heap.h"
+#include "mirror/art_field.h"
 #include "mirror/class.h"
-#include "mirror/field.h"
 #include "mirror/object_array.h"
 
 namespace art {
@@ -136,8 +136,8 @@
                                      ? klass->NumReferenceStaticFields()
                                      : klass->NumReferenceInstanceFields());
       for (size_t i = 0; i < num_reference_fields; ++i) {
-        mirror::Field* field = (is_static ? klass->GetStaticField(i)
-                                          : klass->GetInstanceField(i));
+        mirror::ArtField* field = (is_static ? klass->GetStaticField(i)
+                                   : klass->GetInstanceField(i));
         MemberOffset field_offset = field->GetOffset();
         const mirror::Object* ref = obj->GetFieldObject<const mirror::Object*>(field_offset, false);
         visitor(obj, ref, field_offset, is_static);
diff --git a/runtime/gc/collector/mark_sweep.cc b/runtime/gc/collector/mark_sweep.cc
index 7b78720..61570ae 100644
--- a/runtime/gc/collector/mark_sweep.cc
+++ b/runtime/gc/collector/mark_sweep.cc
@@ -37,11 +37,11 @@
 #include "jni_internal.h"
 #include "monitor.h"
 #include "mark_sweep-inl.h"
+#include "mirror/art_field.h"
+#include "mirror/art_field-inl.h"
 #include "mirror/class-inl.h"
 #include "mirror/class_loader.h"
 #include "mirror/dex_cache.h"
-#include "mirror/field.h"
-#include "mirror/field-inl.h"
 #include "mirror/object-inl.h"
 #include "mirror/object_array.h"
 #include "mirror/object_array-inl.h"
@@ -50,8 +50,8 @@
 #include "thread_list.h"
 #include "verifier/method_verifier.h"
 
+using ::art::mirror::ArtField;
 using ::art::mirror::Class;
-using ::art::mirror::Field;
 using ::art::mirror::Object;
 using ::art::mirror::ObjectArray;
 
@@ -1072,11 +1072,11 @@
 
         const Class* klass = is_static ? obj->AsClass() : obj->GetClass();
         DCHECK(klass != NULL);
-        const ObjectArray<Field>* fields = is_static ? klass->GetSFields() : klass->GetIFields();
+        const ObjectArray<ArtField>* fields = is_static ? klass->GetSFields() : klass->GetIFields();
         DCHECK(fields != NULL);
         bool found = false;
         for (int32_t i = 0; i < fields->GetLength(); ++i) {
-          const Field* cur = fields->Get(i);
+          const ArtField* cur = fields->Get(i);
           if (cur->GetOffset().Int32Value() == offset.Int32Value()) {
             LOG(WARNING) << "Field referencing the alloc space was " << PrettyField(cur);
             found = true;
diff --git a/runtime/gc/heap.cc b/runtime/gc/heap.cc
index df1f3fe..a2453b8 100644
--- a/runtime/gc/heap.cc
+++ b/runtime/gc/heap.cc
@@ -41,8 +41,8 @@
 #include "gc/space/space-inl.h"
 #include "image.h"
 #include "invoke_arg_array_builder.h"
+#include "mirror/art_field-inl.h"
 #include "mirror/class-inl.h"
-#include "mirror/field-inl.h"
 #include "mirror/object.h"
 #include "mirror/object-inl.h"
 #include "mirror/object_array-inl.h"
@@ -1512,11 +1512,11 @@
           if (!obj->IsObjectArray()) {
             const mirror::Class* klass = is_static ? obj->AsClass() : obj->GetClass();
             CHECK(klass != NULL);
-            const mirror::ObjectArray<mirror::Field>* fields = is_static ? klass->GetSFields()
-                                                                         : klass->GetIFields();
+            const mirror::ObjectArray<mirror::ArtField>* fields = is_static ? klass->GetSFields()
+                                                                            : klass->GetIFields();
             CHECK(fields != NULL);
             for (int32_t i = 0; i < fields->GetLength(); ++i) {
-              const mirror::Field* cur = fields->Get(i);
+              const mirror::ArtField* cur = fields->Get(i);
               if (cur->GetOffset().Int32Value() == offset.Int32Value()) {
                 LOG(ERROR) << (is_static ? "Static " : "") << "field in the live stack is "
                           << PrettyField(cur);
diff --git a/runtime/gc/space/image_space.cc b/runtime/gc/space/image_space.cc
index 8ff7025..22562df 100644
--- a/runtime/gc/space/image_space.cc
+++ b/runtime/gc/space/image_space.cc
@@ -22,7 +22,7 @@
 #include "base/stl_util.h"
 #include "base/unix_file/fd_file.h"
 #include "gc/accounting/space_bitmap-inl.h"
-#include "mirror/abstract_method.h"
+#include "mirror/art_method.h"
 #include "mirror/class-inl.h"
 #include "mirror/object-inl.h"
 #include "oat_file.h"
@@ -187,14 +187,14 @@
 
   Runtime* runtime = Runtime::Current();
   mirror::Object* resolution_method = image_header.GetImageRoot(ImageHeader::kResolutionMethod);
-  runtime->SetResolutionMethod(down_cast<mirror::AbstractMethod*>(resolution_method));
+  runtime->SetResolutionMethod(down_cast<mirror::ArtMethod*>(resolution_method));
 
   mirror::Object* callee_save_method = image_header.GetImageRoot(ImageHeader::kCalleeSaveMethod);
-  runtime->SetCalleeSaveMethod(down_cast<mirror::AbstractMethod*>(callee_save_method), Runtime::kSaveAll);
+  runtime->SetCalleeSaveMethod(down_cast<mirror::ArtMethod*>(callee_save_method), Runtime::kSaveAll);
   callee_save_method = image_header.GetImageRoot(ImageHeader::kRefsOnlySaveMethod);
-  runtime->SetCalleeSaveMethod(down_cast<mirror::AbstractMethod*>(callee_save_method), Runtime::kRefsOnly);
+  runtime->SetCalleeSaveMethod(down_cast<mirror::ArtMethod*>(callee_save_method), Runtime::kRefsOnly);
   callee_save_method = image_header.GetImageRoot(ImageHeader::kRefsAndArgsSaveMethod);
-  runtime->SetCalleeSaveMethod(down_cast<mirror::AbstractMethod*>(callee_save_method), Runtime::kRefsAndArgs);
+  runtime->SetCalleeSaveMethod(down_cast<mirror::ArtMethod*>(callee_save_method), Runtime::kRefsAndArgs);
 
   UniquePtr<ImageSpace> space(new ImageSpace(image_file_name, map.release()));