Revert of Only use FreeSpace objects in the free list.

test/cctest/test-heap.cc

Index: test/cctest/test-heap.cc
diff --git a/test/cctest/test-heap.cc b/test/cctest/test-heap.cc
index 82958393c5a20238788a4f556a59ccaad8558098..ec173105c7d96f404720ea31025792f99b4049b9 100644
--- a/test/cctest/test-heap.cc
+++ b/test/cctest/test-heap.cc
@@ -3872,6 +3872,21 @@
 }
 
 
+// Helper function that simulates a fill new-space in the heap.
+static inline void AllocateAllButNBytes(v8::internal::NewSpace* space,
+                                        int extra_bytes) {
+  int space_remaining = static_cast<int>(
+      *space->allocation_limit_address() - *space->allocation_top_address());
+  CHECK(space_remaining >= extra_bytes);
+  int new_linear_size = space_remaining - extra_bytes;
+  v8::internal::AllocationResult allocation =
+      space->AllocateRaw(new_linear_size);
+  v8::internal::FreeListNode* node =
+      v8::internal::FreeListNode::cast(allocation.ToObjectChecked());
+  node->set_size(space->heap(), new_linear_size);
+}
+
+
 TEST(Regress169928) {
   i::FLAG_allow_natives_syntax = true;
   i::FLAG_crankshaft = false;