3257     Representation old_representation, Representation new_representation,  in PrintGeneralization()  argument
3272     os << old_representation.Mnemonic() << "{";  in PrintGeneralization()
4234     Representation old_representation = old_details.representation();  in MigrateFastToFast()  local
4250         DCHECK(!old_representation.IsDouble() && !representation.IsDouble());  in MigrateFastToFast()
4264         if (!old_representation.IsDouble() && representation.IsDouble()) {  in MigrateFastToFast()
4265           DCHECK_IMPLIES(old_representation.IsNone(),  in MigrateFastToFast()
4268         } else if (old_representation.IsDouble() &&  in MigrateFastToFast()
4270           value = Object::WrapForRead(isolate, value, old_representation);  in MigrateFastToFast()
4771   Representation old_representation = old_details.representation();  in GeneralizeField()  local
4780       old_representation.Equals(new_representation) &&  in GeneralizeField()
4785     DCHECK(GeneralizeFieldType(old_representation, old_field_type,  in GeneralizeField()
4798       Map::GeneralizeFieldType(old_representation, old_field_type,  in GeneralizeField()