[regexp] Turn last match info into a simple FixedArray

src/factory.h

 // Copyright 2014 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.
 
 #ifndef V8_FACTORY_H_
 #define V8_FACTORY_H_
 
 #include "src/isolate.h"
 #include "src/messages.h"
 #include "src/type-feedback-vector.h"
@@ skipping 708 matching lines @@
                                              Handle<Object> stack_frames);
 
   Handle<DebugInfo> NewDebugInfo(Handle<SharedFunctionInfo> shared);
 
   // Return a map for given number of properties using the map cache in the
   // native context.
   Handle<Map> ObjectLiteralMapFromCache(Handle<Context> context,
                                         int number_of_properties,
                                         bool* is_result_from_cache);
 
+  V8_EXPORT_PRIVATE Handle<RegExpMatchInfo> NewRegExpMatchInfo();
+
   // Creates a new FixedArray that holds the data associated with the
   // atom regexp and stores it in the regexp.
   void SetRegExpAtomData(Handle<JSRegExp> regexp,
                          JSRegExp::Type type,
                          Handle<String> source,
                          JSRegExp::Flags flags,
                          Handle<Object> match_pattern);
 
   // Creates a new FixedArray that holds the data associated with the
   // irregexp regexp and stores it in the regexp.
@@ skipping 49 matching lines @@
                                      FunctionMode function_mode);
 
   void SetStrictFunctionInstanceDescriptor(Handle<Map> map,
                                            FunctionMode function_mode);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_FACTORY_H_