Cleanup FreeSpace: Remove getter for address of next pointer

src/heap/spaces.cc

Index: src/heap/spaces.cc
diff --git a/src/heap/spaces.cc b/src/heap/spaces.cc
index 520a4060ca4c8280bc324f1c17228254e0c0a06b..d133353b2d353303b4d456e15a1fd8a826511c7e 100644
--- a/src/heap/spaces.cc
+++ b/src/heap/spaces.cc
@@ -2235,7 +2235,7 @@ FreeSpace* FreeListCategory::PickNodeFromList(int* node_size) {
 
   Page* page = Page::FromAddress(node->address());
   while ((node != nullptr) && page->IsEvacuationCandidate()) {
-    available_ -= node->Size();
+    available_ -= node->size();
     page->add_available_in_free_list(type_, -(node->Size()));
     node = node->next();
   }