Support non-internalized string key lookups in Hydrogen KeyedLoadIC

src/runtime.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 <stdlib.h>
 #include <limits>
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
@@ skipping 4458 matching lines @@
   }
   RUNTIME_ASSERT(end >= start);
   RUNTIME_ASSERT(start >= 0);
   RUNTIME_ASSERT(end <= string->length());
   isolate->counters()->sub_string_runtime()->Increment();
 
   return *isolate->factory()->NewSubString(string, start, end);
 }
 
 
+RUNTIME_FUNCTION(Runtime_InternalizeString) {
+  HandleScope handles(isolate);
+  RUNTIME_ASSERT(args.length() == 1);
+  CONVERT_ARG_HANDLE_CHECKED(String, string, 0);
+  return *isolate->factory()->InternalizeString(string);
+}
+
+
 RUNTIME_FUNCTION(Runtime_StringMatch) {
   HandleScope handles(isolate);
   ASSERT(args.length() == 3);
 
   CONVERT_ARG_HANDLE_CHECKED(String, subject, 0);
   CONVERT_ARG_HANDLE_CHECKED(JSRegExp, regexp, 1);
   CONVERT_ARG_HANDLE_CHECKED(JSArray, regexp_info, 2);
 
   RUNTIME_ASSERT(regexp_info->HasFastObjectElements());
 
@@ skipping 10622 matching lines @@
   }
   return NULL;
 }
 
 
 const Runtime::Function* Runtime::FunctionForId(Runtime::FunctionId id) {
   return &(kIntrinsicFunctions[static_cast<int>(id)]);
 }
 
 } }  // namespace v8::internal