[heap] Refactor heap object iteration

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index 9a1df48698cd4e7e84b5e424df26e562a73a95ed..76bf8c331f514588b418baf7d2f9d7ebcb17bc9b 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -4709,8 +4709,8 @@ void Heap::Verify() {
 
 void Heap::ZapFromSpace() {
   if (!new_space_->IsFromSpaceCommitted()) return;
-  for (Page* page : NewSpacePageRange(new_space_->FromSpaceStart(),
-                                      new_space_->FromSpaceEnd())) {
+  for (Page* page :
+       PageRange(new_space_->FromSpaceStart(), new_space_->FromSpaceEnd())) {
     for (Address cursor = page->area_start(), limit = page->area_end();
          cursor < limit; cursor += kPointerSize) {
       Memory::Address_at(cursor) = kFromSpaceZapValue;