Print field info on mark sweep invalid ref crash.

Bug: 20557050
Change-Id: I3abb7a44e3b7ed3256653824fd1705aac5f7d72c
diff --git a/runtime/gc/accounting/heap_bitmap.h b/runtime/gc/accounting/heap_bitmap.h
index 245e074..1648aef 100644
--- a/runtime/gc/accounting/heap_bitmap.h
+++ b/runtime/gc/accounting/heap_bitmap.h
@@ -39,9 +39,11 @@
   void Clear(const mirror::Object* obj) EXCLUSIVE_LOCKS_REQUIRED(Locks::heap_bitmap_lock_);
   template<typename LargeObjectSetVisitor>
   bool Set(const mirror::Object* obj, const LargeObjectSetVisitor& visitor)
+      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_)
       EXCLUSIVE_LOCKS_REQUIRED(Locks::heap_bitmap_lock_) ALWAYS_INLINE;
   template<typename LargeObjectSetVisitor>
   bool AtomicTestAndSet(const mirror::Object* obj, const LargeObjectSetVisitor& visitor)
+      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_)
       EXCLUSIVE_LOCKS_REQUIRED(Locks::heap_bitmap_lock_) ALWAYS_INLINE;
   ContinuousSpaceBitmap* GetContinuousSpaceBitmap(const mirror::Object* obj) const;
   LargeObjectBitmap* GetLargeObjectBitmap(const mirror::Object* obj) const;