Bookkeeping for allocation site pretenuring

src/mark-compact.h

Index: src/mark-compact.h
diff --git a/src/mark-compact.h b/src/mark-compact.h
index aea5e1cf66249267d9afa35a868a193e930fa50e..2a1d97dc2aefc98c382a27419c2a575e6e53cedb 100644
--- a/src/mark-compact.h
+++ b/src/mark-compact.h
@@ -739,6 +739,10 @@ class MarkCompactCollector {
   // marking its contents.
   void MarkWeakObjectToCodeTable();
 
+  // Special case for processing weak references in a full collection. We need
+  // to artifically keep AllocationSites alive for a time.
+  void MarkAllocationSite(AllocationSite* site);
+
  private:
   MarkCompactCollector();
   ~MarkCompactCollector();