Add AbstractMethod, Constructor, Method

Moves functionality to ART from libcore. Precursor to moving
ArtMethods to native. Mostly performance improvements.

N5 perf before (irrelevant results removed):
            Class_getConstructor  962.87 ===========
         Class_getDeclaredMethod 2394.37 ============================
                 Class_getMethod 2509.20 ==============================
               Class_newInstance 1999.81 =======================
                  Method_invokeI 1439.02 =================
          Method_invokePreBoxedI 1415.82 ================
            Method_invokeStaticI 1456.24 =================
    Method_invokeStaticPreBoxedI 1427.32 =================
            Method_invokeStaticV  814.47 =========
                  Method_invokeV  816.56 =========
After:
                       benchmark      ns linear runtime
            Class_getConstructor 1302.04 ================
         Class_getDeclaredMethod 1459.01 ==================
                 Class_getMethod 1560.40 ===================
               Class_newInstance 2029.94 =========================
                  Method_invokeI 1312.89 ================
          Method_invokePreBoxedI 1255.01 ===============
            Method_invokeStaticI 1289.13 ===============
    Method_invokeStaticPreBoxedI 1196.52 ==============
            Method_invokeStaticV  790.82 =========
                  Method_invokeV  791.73 =========

Performance improvements are more than just fixing regressions introduced
in: http://android-review.googlesource.com/#/c/146069/

Bug: 19264997

Change-Id: Ife79c469fdb09f30e3aefcfc3e0ce5ed32303fce
diff --git a/runtime/mirror/field.h b/runtime/mirror/field.h
index 9988f84..d927f0c 100644
--- a/runtime/mirror/field.h
+++ b/runtime/mirror/field.h
@@ -82,15 +82,12 @@
   }
 
   static void SetClass(Class* klass) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
-
-  static void SetArrayClass(Class* klass) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
-
   static void ResetClass() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
 
+  static void SetArrayClass(Class* klass) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
   static void ResetArrayClass() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
 
-  static void VisitRoots(RootVisitor* visitor)
-      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
+  static void VisitRoots(RootVisitor* visitor) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
 
   // Slow, try to use only for PrettyField and such.
   ArtField* GetArtField() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);