A64: Synchronize with r16249.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index d466def239ece5f57248dc9da646f9570efcc2d1..a9b5afe5994d1e2b914f9c824c8d91bbc3e221df 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -1078,7 +1078,7 @@ class MaybeObject BASE_EMBEDDED {
     "bad value context for arguments object value")                           \
   V(kBadValueContextForArgumentsValue,                                        \
     "bad value context for arguments value")                                  \
-  V(kBailedOutDueToDependentMap, "bailed out due to dependent map")           \
+  V(kBailedOutDueToDependencyChange, "bailed out due to dependency change")   \
   V(kBailoutWasNotPrepared, "bailout was not prepared")                       \
   V(kBinaryStubGenerateFloatingPointCode,                                     \
     "BinaryStub_GenerateFloatingPointCode")                                   \
@@ -2697,6 +2697,8 @@ class JSObject: public JSReceiver {
       FILE* file, ElementsKind from_kind, FixedArrayBase* from_elements,
       ElementsKind to_kind, FixedArrayBase* to_elements);
 
+  void PrintInstanceMigration(FILE* file, Map* original_map, Map* new_map);
+
 #ifdef DEBUG
   // Structure for collecting spill information about JSObjects.
   class SpillInformation {
@@ -5648,6 +5650,17 @@ class Map: public HeapObject {
       Representation representation);
   MUST_USE_RESULT MaybeObject* CopyGeneralizeAllRepresentations();
 
+  void PrintGeneralization(FILE* file,
+                           int modify_index,
+                           int split,
+                           int descriptors,
+                           Representation old_representation,
+                           Representation new_representation);
+
+  // Returns the constructor name (the name (possibly, inferred name) of the
+  // function that was used to instantiate the object).
+  String* constructor_name();
+
   // Tells whether the map is attached to SharedFunctionInfo
   // (for inobject slack tracking).
   inline void set_attached_to_shared_function_info(bool value);