A64: Synchronize with r18084.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index a4a5c24c3126f6be75c1cb352949abcc9192271b..6cba11ea643f8829f756a92cb937f3655d8312ac 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -863,7 +863,8 @@ enum CompareResult {
 
 class AccessorPair;
 class AllocationSite;
-class AllocationSiteContext;
+class AllocationSiteCreationContext;
+class AllocationSiteUsageContext;
 class DictionaryElementsAccessor;
 class ElementsAccessor;
 class Failure;
@@ -2562,13 +2563,17 @@ class JSObject: public JSReceiver {
   static void SetObserved(Handle<JSObject> object);
 
   // Copy object.
-  static Handle<JSObject> Copy(Handle<JSObject> object,
-                               Handle<AllocationSite> site);
+  enum DeepCopyHints {
+    kNoHints = 0,
+    kObjectIsShallowArray = 1
+  };
+
   static Handle<JSObject> Copy(Handle<JSObject> object);
   static Handle<JSObject> DeepCopy(Handle<JSObject> object,
-                                   AllocationSiteContext* site_context);
+                                   AllocationSiteUsageContext* site_context,
+                                   DeepCopyHints hints = kNoHints);
   static Handle<JSObject> DeepWalk(Handle<JSObject> object,
-                                   AllocationSiteContext* site_context);
+                                   AllocationSiteCreationContext* site_context);
 
   // Casting.
   static inline JSObject* cast(Object* obj);
@@ -5095,6 +5100,7 @@ class Code: public HeapObject {
   // [relocation_info]: Code relocation information
   DECL_ACCESSORS(relocation_info, ByteArray)
   void InvalidateRelocation();
+  void InvalidateEmbeddedObjects();
 
   // [handler_table]: Fixed array containing offsets of exception handlers.
   DECL_ACCESSORS(handler_table, FixedArray)
@@ -5182,6 +5188,7 @@ class Code: public HeapObject {
   // [major_key]: For kind STUB or BINARY_OP_IC, the major key.
   inline int major_key();
   inline void set_major_key(int value);
+  inline bool has_major_key();
 
   // For kind STUB or ICs, tells whether or not a code object was generated by
   // the optimizing compiler (but it may not be an optimized function).
@@ -6237,6 +6244,16 @@ class Map: public HeapObject {
   bool IsJSObjectMap() {
     return instance_type() >= FIRST_JS_OBJECT_TYPE;
   }
+  bool IsJSGlobalProxyMap() {
+    return instance_type() == JS_GLOBAL_PROXY_TYPE;
+  }
+  bool IsJSGlobalObjectMap() {
+    return instance_type() == JS_GLOBAL_OBJECT_TYPE;
+  }
+  bool IsGlobalObjectMap() {
+    const InstanceType type = instance_type();
+    return type == JS_GLOBAL_OBJECT_TYPE || type == JS_BUILTINS_OBJECT_TYPE;
+  }
 
   // Fires when the layout of an object with a leaf map changes.
   // This includes adding transitions to the leaf map or changing
@@ -6547,7 +6564,6 @@ class Script: public Struct {
   V(Math, exp, MathExp)                             \
   V(Math, sqrt, MathSqrt)                           \
   V(Math, pow, MathPow)                             \
-  V(Math, random, MathRandom)                       \
   V(Math, max, MathMax)                             \
   V(Math, min, MathMin)                             \
   V(Math, imul, MathImul)
@@ -8151,6 +8167,9 @@ class AllocationSite: public Struct {
   // walked in a particular order. So [[1, 2], 1, 2] will have one
   // nested_site, but [[1, 2], 3, [4]] will have a list of two.
   DECL_ACCESSORS(nested_site, Object)
+  DECL_ACCESSORS(memento_found_count, Smi)
+  DECL_ACCESSORS(memento_create_count, Smi)
+  DECL_ACCESSORS(pretenure_decision, Smi)
   DECL_ACCESSORS(dependent_code, DependentCode)
   DECL_ACCESSORS(weak_next, Object)
 
@@ -8218,7 +8237,13 @@ class AllocationSite: public Struct {
 
   static const int kTransitionInfoOffset = HeapObject::kHeaderSize;
   static const int kNestedSiteOffset = kTransitionInfoOffset + kPointerSize;
-  static const int kDependentCodeOffset = kNestedSiteOffset + kPointerSize;
+  static const int kMementoFoundCountOffset = kNestedSiteOffset + kPointerSize;
+  static const int kMementoCreateCountOffset =
+      kMementoFoundCountOffset + kPointerSize;
+  static const int kPretenureDecisionOffset =
+      kMementoCreateCountOffset + kPointerSize;
+  static const int kDependentCodeOffset =
+      kPretenureDecisionOffset + kPointerSize;
   static const int kWeakNextOffset = kDependentCodeOffset + kPointerSize;
   static const int kSize = kWeakNextOffset + kPointerSize;
 
@@ -9661,6 +9686,9 @@ class JSArrayBuffer: public JSObject {
   inline bool is_external();
   inline void set_is_external(bool value);
 
+  inline bool should_be_freed();
+  inline void set_should_be_freed(bool value);
+
   // [weak_next]: linked list of array buffers.
   DECL_ACCESSORS(weak_next, Object)
 
@@ -9690,6 +9718,7 @@ class JSArrayBuffer: public JSObject {
  private:
   // Bit position in a flag
   static const int kIsExternalBit = 0;
+  static const int kShouldBeFreed = 1;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(JSArrayBuffer);
 };