Changed statement ZoneList to a ZoneChunkList

src/zone/zone.h

Index: src/zone/zone.h
diff --git a/src/zone/zone.h b/src/zone/zone.h
index 892dfb7f5662a8b551a737535725435a2b39a4f8..2d639573feb6337dc9660202bab42daa5648da99 100644
--- a/src/zone/zone.h
+++ b/src/zone/zone.h
@@ -117,7 +117,7 @@ class V8_EXPORT_PRIVATE Zone final {
 };
 
 // ZoneObject is an abstraction that helps define classes of objects
-// allocated in the Zone. Use it as a base class; see ast.h.
+// allocated in the Zone. Use it as an interface; see ast.h.
 class ZoneObject {
  public:
   // Allocate a new ZoneObject of 'size' bytes in the Zone.
@@ -125,7 +125,7 @@ class ZoneObject {
 
   // Ideally, the delete operator should be private instead of
   // public, but unfortunately the compiler sometimes synthesizes
-  // (unused) destructors for classes derived from ZoneObject, which
+  // (unused) destructors for classes implementing ZoneObject, which
   // require the operator to be visible. MSVC requires the delete
   // operator to be public.