PPC: Fixed RememberedSetRemoveRange to have chunk->size > PageSize

test/cctest/heap/test-heap.cc

Index: test/cctest/heap/test-heap.cc
diff --git a/test/cctest/heap/test-heap.cc b/test/cctest/heap/test-heap.cc
index aa2b704ca7c2d04ee2bf0c6210bbfea97513ab83..ae2d7c6b61eef8fa76c47d41428854f85d83c1e2 100644
--- a/test/cctest/heap/test-heap.cc
+++ b/test/cctest/heap/test-heap.cc
@@ -6835,7 +6835,8 @@ TEST(RememberedSetRemoveRange) {
   Heap* heap = CcTest::heap();
   Isolate* isolate = heap->isolate();
 
-  Handle<FixedArray> array = isolate->factory()->NewFixedArray(500000);
+  Handle<FixedArray> array = isolate->factory()->NewFixedArray(Page::kPageSize /
+                                                              kPointerSize);
   MemoryChunk* chunk = MemoryChunk::FromAddress(array->address());
   CHECK(chunk->owner()->identity() == LO_SPACE);
   Address start = array->address();