Change j.l.r.Field to use ArtField index instead of dexFileIndex

Using the dexFileIndex to determine the ArtField a
java.lang.reflect.Field object points to requires us to use a
dex-cache and to update all existing Field objects if this index
changes (for example due to class redefinition). This could be rather
slow. This replaces the dex-file index with the index into the
declaring class's SFields/IFields arrays where the specified ArtMethod
is stored.

Bug: 149236640
Test: ./test.py --host

Change-Id: I9a7d69903ece0ea94e3b3e93b4c8a872ac4073e8

1 files changed, 1 insertions, 1 deletions

diff --git a/runtime/class_linker_test.cc b/runtime/class_linker_test.cc
index 0969b1c50c..1e501a765b 100644
--- a/runtime/class_linker_test.cc
+++ b/runtime/class_linker_test.cc
@@ -719,8 +719,8 @@ struct AccessibleObjectOffsets : public CheckOffsets<mirror::AccessibleObject> {
 struct FieldOffsets : public CheckOffsets<mirror::Field> {
   FieldOffsets() : CheckOffsets<mirror::Field>(false, "Ljava/lang/reflect/Field;") {
     addOffset(OFFSETOF_MEMBER(mirror::Field, access_flags_), "accessFlags");
+    addOffset(OFFSETOF_MEMBER(mirror::Field, art_field_index_), "artFieldIndex");
     addOffset(OFFSETOF_MEMBER(mirror::Field, declaring_class_), "declaringClass");
-    addOffset(OFFSETOF_MEMBER(mirror::Field, dex_field_index_), "dexFieldIndex");
     addOffset(OFFSETOF_MEMBER(mirror::Field, offset_), "offset");
     addOffset(OFFSETOF_MEMBER(mirror::Field, type_), "type");
   }