[ic] Load IC data handlers now support prototype chain checks with global and dictionary objects.

src/ic/stub-cache.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/ic/stub-cache.h"
 
 #include "src/ast/ast.h"
 #include "src/base/bits.h"
 #include "src/ic/ic-inl.h"
 #include "src/type-info.h"
@@ skipping 12 matching lines @@
   DCHECK(base::bits::IsPowerOfTwo32(kPrimaryTableSize));
   DCHECK(base::bits::IsPowerOfTwo32(kSecondaryTableSize));
   Clear();
 }
 
 #ifdef DEBUG
 namespace {
 
 bool CommonStubCacheChecks(StubCache* stub_cache, Name* name, Map* map,
                            Object* handler) {
-  // Validate that the name does not move on scavenge, and that we
+  // Validate that the name and handler do not move on scavenge, and that we
   // can use identity checks instead of structural equality checks.
   DCHECK(!name->GetHeap()->InNewSpace(name));
+  DCHECK(!name->GetHeap()->InNewSpace(handler));
   DCHECK(name->IsUniqueName());
   DCHECK(name->HasHashCode());
   if (handler) {
     DCHECK(IC::IsHandler(handler));
     if (handler->IsCode()) {
       Code* code = Code::cast(handler);
       Code::Flags expected_flags = Code::RemoveHolderFromFlags(
           Code::ComputeHandlerFlags(stub_cache->ic_kind()));
       Code::Flags flags = Code::RemoveHolderFromFlags(code->flags());
       DCHECK_EQ(expected_flags, flags);
@@ skipping 95 matching lines @@
       int offset = SecondaryOffset(*name, primary_offset);
       if (entry(secondary_, offset) == &secondary_[i] &&
           TypeFeedbackOracle::IsRelevantFeedback(map, *native_context)) {
         types->AddMapIfMissing(Handle<Map>(map), zone);
       }
     }
   }
 }
 }  // namespace internal
 }  // namespace v8