Merge r5476 into 2.3 branch (issue3434004).

src/objects.h

Index: src/objects.h
===================================================================
--- src/objects.h	(revision 5476)
+++ src/objects.h	(working copy)
@@ -1883,6 +1883,11 @@
   Object* RemoveTransitions();
 
   // Sort the instance descriptors by the hash codes of their keys.
+  // Does not check for duplicates.
+  void SortUnchecked();
+
+  // Sort the instance descriptors by the hash codes of their keys.
+  // Checks the result for duplicates.
   void Sort();
 
   // Search the instance descriptors for given name.
@@ -3534,6 +3539,10 @@
   // prototype.
   bool CanGenerateInlineConstructor(Object* prototype);
 
+  // Prevents further attempts to generate inline constructors.
+  // To be called if generation failed for any reason.
+  void ForbidInlineConstructor();
+
   // For functions which only contains this property assignments this provides
   // access to the names for the properties assigned.
   DECL_ACCESSORS(this_property_assignments, Object)