Create AllocationSite objects, pointed to by AllocationSiteInfo.

src/objects-debug.cc

Index: src/objects-debug.cc
diff --git a/src/objects-debug.cc b/src/objects-debug.cc
index 4008181bad410dcc32881cb571bf2318a316cf1b..9f2bb42669d6d8b8da261995577168047972d252 100644
--- a/src/objects-debug.cc
+++ b/src/objects-debug.cc
@@ -888,10 +888,17 @@ void TypeSwitchInfo::TypeSwitchInfoVerify() {
 }
 
 
+void AllocationSite::AllocationSiteVerify() {
+  CHECK(IsAllocationSite());
+}
+
+
 void AllocationSiteInfo::AllocationSiteInfoVerify() {
   CHECK(IsAllocationSiteInfo());
   VerifyHeapPointer(payload());
-  CHECK(payload()->IsObject());
+  // TODO(mvstanton): remove the IsJSGlobalPropertyCell check when
+  // constructed arrays uses the site too.
+  CHECK(payload()->IsAllocationSite() || payload()->IsJSGlobalPropertyCell());
 }