Move prototype metadata from internal properties to prototype maps

src/objects-debug.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/disasm.h"
 #include "src/disassembler.h"
 #include "src/heap/objects-visiting.h"
 #include "src/jsregexp.h"
@@ skipping 862 matching lines @@
   CHECK(IsForeign());
 }
 
 
 void Box::BoxVerify() {
   CHECK(IsBox());
   value()->ObjectVerify();
 }
 
 
+void PrototypeInfo::PrototypeInfoVerify() {
+  CHECK(IsPrototypeInfo());
+  CHECK(prototype_object()->IsJSObject());
+  if (prototype_users()->IsWeakFixedArray()) {
+    WeakFixedArray::cast(prototype_users())->FixedArrayVerify();
+  } else {
+    CHECK(prototype_users()->IsSmi());
+  }
+  CHECK(validity_cell()->IsCell() || validity_cell()->IsCell());
+}
+
+
 void AccessorInfo::AccessorInfoVerify() {
   VerifyPointer(name());
   VerifyPointer(flag());
   VerifyPointer(expected_receiver_type());
 }
 
 
 void ExecutableAccessorInfo::ExecutableAccessorInfoVerify() {
   CHECK(IsExecutableAccessorInfo());
   AccessorInfoVerify();
@@ skipping 378 matching lines @@
                          ? it.rinfo()->target_cell()
                          : it.rinfo()->target_object();
     CHECK(!CanLeak(target, heap, skip_weak_cell));
   }
 }
 
 
 #endif  // DEBUG
 
 } }  // namespace v8::internal