Fix HashTable growth strategy to be 2x instead of 4x

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index ba56261c9991a48efc3d5f838630c06c058ebae7..0ef4cd2f5e4d6fb37c03e7226a06f5a86669274d 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -16728,21 +16728,19 @@ Handle<Derived> HashTable<Derived, Shape, Key>::EnsureCapacity(
     int n,
     Key key,
     PretenureFlag pretenure) {
+  if (table->HasSufficientCapacityToAdd(n)) return table;
+
   Isolate* isolate = table->GetIsolate();
   int capacity = table->Capacity();
-  int nof = table->NumberOfElements() + n;
-
-  if (table->HasSufficientCapacityToAdd(n)) return table;
+  int new_nof = table->NumberOfElements() + n;
 
   const int kMinCapacityForPretenure = 256;
   bool should_pretenure = pretenure == TENURED ||
       ((capacity > kMinCapacityForPretenure) &&
           !isolate->heap()->InNewSpace(*table));
-  Handle<Derived> new_table = HashTable::New(
-      isolate,
-      nof * 2,
-      USE_DEFAULT_MINIMUM_CAPACITY,
-      should_pretenure ? TENURED : NOT_TENURED);
+  Handle<Derived> new_table =
+      HashTable::New(isolate, new_nof, USE_DEFAULT_MINIMUM_CAPACITY,
+                     should_pretenure ? TENURED : NOT_TENURED);
 
   table->Rehash(new_table, key);
   return new_table;