Merged r16324 into 3.20 branch.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 3430431e643dc65a7f427c701be84ed5c8705591..c72d150f2ea2b2104e1507f9ee8be876eae94f0d 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -2719,7 +2719,11 @@ class JSObject: public JSReceiver {
   // don't want to be wasteful with long lived objects.
   static const int kMaxUncheckedOldFastElementsLength = 500;
 
-  static const int kInitialMaxFastElementArray = 100000;
+  // TODO(2790): HAllocate currently always allocates fast backing stores
+  // in new space, where on x64 we can only fit ~98K elements. Keep this
+  // limit lower than that until HAllocate is made smarter.
+  static const int kInitialMaxFastElementArray = 95000;
+
   static const int kFastPropertiesSoftLimit = 12;
   static const int kMaxFastProperties = 64;
   static const int kMaxInstanceSize = 255 * kPointerSize;