More efficient use of space in AllocationSite.

src/heap-snapshot-generator.cc

Index: src/heap-snapshot-generator.cc
diff --git a/src/heap-snapshot-generator.cc b/src/heap-snapshot-generator.cc
index 3125a266d69c55e0e84f64e1e647bc6376ea57ce..6a0b5ba653983c6f002497616abc4f9f71a8e40b 100644
--- a/src/heap-snapshot-generator.cc
+++ b/src/heap-snapshot-generator.cc
@@ -1403,15 +1403,9 @@ void V8HeapExplorer::ExtractAllocationSiteReferences(int entry,
                        AllocationSite::kTransitionInfoOffset);
   SetInternalReference(site, entry, "nested_site", site->nested_site(),
                        AllocationSite::kNestedSiteOffset);
-  SetInternalReference(site, entry, "memento_found_count",
-                       site->memento_found_count(),
-                       AllocationSite::kMementoFoundCountOffset);
-  SetInternalReference(site, entry, "memento_create_count",
-                       site->memento_create_count(),
-                       AllocationSite::kMementoCreateCountOffset);
-  SetInternalReference(site, entry, "pretenure_decision",
-                       site->pretenure_decision(),
-                       AllocationSite::kPretenureDecisionOffset);
+  SetInternalReference(site, entry, "pretenure_data",
+                       site->pretenure_data(),
+                       AllocationSite::kPretenureDataOffset);
   SetInternalReference(site, entry, "dependent_code", site->dependent_code(),
                        AllocationSite::kDependentCodeOffset);
 }