Also allocate small typed arrays on heap when initialized from an array-like

test/cctest/test-heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 5423 matching lines @@
 
 static void TestRightTrimFixedTypedArray(i::ExternalArrayType type,
                                          int initial_length,
                                          int elements_to_trim) {
   v8::HandleScope scope(CcTest::isolate());
   Isolate* isolate = CcTest::i_isolate();
   Factory* factory = isolate->factory();
   Heap* heap = isolate->heap();
 
   Handle<FixedTypedArrayBase> array =
-      factory->NewFixedTypedArray(initial_length, type);
+      factory->NewFixedTypedArray(initial_length, type, true);
   int old_size = array->size();
   heap->RightTrimFixedArray<Heap::CONCURRENT_TO_SWEEPER>(*array,
                                                          elements_to_trim);
 
   // Check that free space filler is at the right place and did not smash the
   // array header.
   CHECK(array->IsFixedArrayBase());
   CHECK_EQ(initial_length - elements_to_trim, array->length());
   int new_size = array->size();
   if (new_size != old_size) {
@@ skipping 334 matching lines @@
   size_t counter2 = 2000;
   tracer->SampleAllocation(time2, counter2, counter2);
   size_t throughput = tracer->AllocationThroughputInBytesPerMillisecond(100);
   CHECK_EQ(2 * (counter2 - counter1) / (time2 - time1), throughput);
   int time3 = 1000;
   size_t counter3 = 30000;
   tracer->SampleAllocation(time3, counter3, counter3);
   throughput = tracer->AllocationThroughputInBytesPerMillisecond(100);
   CHECK_EQ(2 * (counter3 - counter1) / (time3 - time1), throughput);
 }