Rename IsDontDelete to IsConfigurable (and invert conditions)

src/hydrogen-instructions.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/base/bits.h"
 #include "src/double.h"
 #include "src/factory.h"
 #include "src/hydrogen-infer-representation.h"
@@ skipping 3566 matching lines @@
      << ElementsAccessor::ForKind(from_kind)->name() << "] -> "
      << *transitioned_map().handle() << " ["
      << ElementsAccessor::ForKind(to_kind)->name() << "]";
   if (IsSimpleMapChangeTransition(from_kind, to_kind)) os << " (simple)";
   return os;
 }
 
 
 OStream& HLoadGlobalCell::PrintDataTo(OStream& os) const {  // NOLINT
   os << "[" << *cell().handle() << "]";
-  if (!details_.IsDontDelete()) os << " (deleteable)";
+  if (details_.IsConfigurable()) os << " (configurable)";
   if (details_.IsReadOnly()) os << " (read-only)";
   return os;
 }
 
 
 bool HLoadGlobalCell::RequiresHoleCheck() const {
-  if (details_.IsDontDelete() && !details_.IsReadOnly()) return false;
+  if (!details_.IsConfigurable()) return false;
   for (HUseIterator it(uses()); !it.Done(); it.Advance()) {
     HValue* use = it.value();
     if (!use->IsChange()) return true;
   }
   return false;
 }
 
 
 OStream& HLoadGlobalGeneric::PrintDataTo(OStream& os) const {  // NOLINT
   return os << name()->ToCString().get() << " ";
 }
 
 
 OStream& HInnerAllocatedObject::PrintDataTo(OStream& os) const {  // NOLINT
   os << NameOf(base_object()) << " offset ";
   return offset()->PrintTo(os);
 }
 
 
 OStream& HStoreGlobalCell::PrintDataTo(OStream& os) const {  // NOLINT
   os << "[" << *cell().handle() << "] = " << NameOf(value());
-  if (!details_.IsDontDelete()) os << " (deleteable)";
+  if (details_.IsConfigurable()) os << " (configurable)";
   if (details_.IsReadOnly()) os << " (read-only)";
   return os;
 }
 
 
 OStream& HLoadContextSlot::PrintDataTo(OStream& os) const {  // NOLINT
   return os << NameOf(value()) << "[" << slot_index() << "]";
 }
 
 
@@ skipping 1140 matching lines @@
       break;
     case HObjectAccess::kExternalMemory:
       os << "[external-memory]";
       break;
   }
 
   return os << "@" << access.offset();
 }
 
 } }  // namespace v8::internal