A64: Synchronize with r15814.

src/assembler.h

Index: src/assembler.h
diff --git a/src/assembler.h b/src/assembler.h
index fcdab4a6c16cfb67c4a412d7d80f92bc75fbb7c5..b258330a583b4eca322b7429606e7b19d84f1162 100644
--- a/src/assembler.h
+++ b/src/assembler.h
@@ -747,6 +747,9 @@ class ExternalReference BASE_EMBEDDED {
   // Static variable Heap::roots_array_start()
   static ExternalReference roots_array_start(Isolate* isolate);
 
+  // Static variable Heap::allocation_sites_list_address()
+  static ExternalReference allocation_sites_list_address(Isolate* isolate);
+
   // Static variable StackGuard::address_of_jslimit()
   static ExternalReference address_of_stack_limit(Isolate* isolate);
 
@@ -863,6 +866,8 @@ class ExternalReference BASE_EMBEDDED {
         reinterpret_cast<ExternalReferenceRedirectorPointer*>(redirector));
   }
 
+  static ExternalReference stress_deopt_count(Isolate* isolate);
+
  private:
   explicit ExternalReference(void* address)
       : address_(address) {}