Remove object_utils.h.

Break into object_lock, field_helper and method_helper.
Clean up header files following this.
Also tidy some of the Handle code in response to compiler errors when resolving
the changes in this CL.

Change-Id: I73e63015a0f02a754d0866bfaf58208aebcaa295
diff --git a/runtime/verify_object.h b/runtime/verify_object.h
index 6640e0d..8e1653d 100644
--- a/runtime/verify_object.h
+++ b/runtime/verify_object.h
@@ -52,10 +52,10 @@
 static constexpr VerifyObjectMode kVerifyObjectSupport =
     kDefaultVerifyFlags != 0 ? kVerifyObjectModeFast : kVerifyObjectModeDisabled;
 
-void VerifyObject(mirror::Object* obj) ALWAYS_INLINE NO_THREAD_SAFETY_ANALYSIS;
+ALWAYS_INLINE void VerifyObject(mirror::Object* obj) NO_THREAD_SAFETY_ANALYSIS;
 
 // Check that c.getClass() == c.getClass().getClass().
-bool VerifyClassClass(mirror::Class* c) ALWAYS_INLINE NO_THREAD_SAFETY_ANALYSIS;
+ALWAYS_INLINE bool VerifyClassClass(mirror::Class* c) NO_THREAD_SAFETY_ANALYSIS;
 
 }  // namespace art