Record ToBoolean's type information in Hydrogen's HBranch instruction, so we can use it in LCodeG...

src/type-info.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 421 matching lines @@
       RelocInfo* info = it.rinfo();
       Object* object = info->target_object();
       if (object->IsMap()) {
         types->Add(Handle<Map>(Map::cast(object)));
       }
     }
   }
 }
 
 
+byte TypeFeedbackOracle::ToBooleanTypes(unsigned ast_id) {
+  Handle<Object> object = GetInfo(ast_id);
+  return object->IsCode() ? Handle<Code>::cast(object)->to_boolean_state() : 0;
+}
+
+
 // Things are a bit tricky here: The iterator for the RelocInfos and the infos
 // themselves are not GC-safe, so we first get all infos, then we create the
 // dictionary (possibly triggering GC), and finally we relocate the collected
 // infos before we process them.
 void TypeFeedbackOracle::BuildDictionary(Handle<Code> code) {
   AssertNoAllocation no_allocation;
   ZoneList<RelocInfo> infos(16);
   HandleScope scope;
   GetRelocInfos(code, &infos);
   CreateDictionary(code, &infos);
@@ skipping 64 matching lines @@
     case Code::KEYED_STORE_IC:
       if (target->ic_state() == MONOMORPHIC ||
           target->ic_state() == MEGAMORPHIC) {
         SetInfo(ast_id, target);
       }
       break;
 
     case Code::UNARY_OP_IC:
     case Code::BINARY_OP_IC:
     case Code::COMPARE_IC:
+    case Code::TO_BOOLEAN_IC:
       SetInfo(ast_id, target);
       break;
 
     default:
       break;
   }
 }
 
 
 void TypeFeedbackOracle::SetInfo(unsigned ast_id, Object* target) {
   ASSERT(dictionary_->FindEntry(ast_id) == NumberDictionary::kNotFound);
   MaybeObject* maybe_result = dictionary_->AtNumberPut(ast_id, target);
   USE(maybe_result);
 #ifdef DEBUG
   Object* result = NULL;
   // Dictionary has been allocated with sufficient size for all elements.
   ASSERT(maybe_result->ToObject(&result));
   ASSERT(*dictionary_ == result);
 #endif
 }
 
 } }  // namespace v8::internal