[crankshaft] Generalize PropertyAccessInfo to Name (so it can deal with symbols).

src/hydrogen.cc

 // Copyright 2013 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/hydrogen.h"
 
 #include <sstream>
 
 #include "src/allocation-site-scopes.h"
 #include "src/ast-numbering.h"
@@ skipping 6391 matching lines @@
     if (IsFound()) return LoadResult(map);
   }
 
   NotFound();
   return !map->prototype()->IsJSReceiver();
 }
 
 
 bool HOptimizedGraphBuilder::PropertyAccessInfo::IsIntegerIndexedExotic() {
   InstanceType instance_type = map_->instance_type();
-  return instance_type == JS_TYPED_ARRAY_TYPE &&
-         IsSpecialIndex(isolate()->unicode_cache(), *name_);
+  return instance_type == JS_TYPED_ARRAY_TYPE && name_->IsString() &&
+         IsSpecialIndex(isolate()->unicode_cache(), String::cast(*name_));
 }
 
 
 bool HOptimizedGraphBuilder::PropertyAccessInfo::CanAccessMonomorphic() {
   if (!CanInlinePropertyAccess(map_)) return false;
   if (IsJSObjectFieldAccessor()) return IsLoad();
   if (IsJSArrayBufferViewFieldAccessor()) return IsLoad();
   if (map_->function_with_prototype() && !map_->has_non_instance_prototype() &&
       name_.is_identical_to(isolate()->factory()->prototype_string())) {
     return IsLoad();
@@ skipping 7139 matching lines @@
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 }  // namespace internal
 }  // namespace v8