objects.h splitting: Move RegExpMatchInfo.

src/regexp/regexp-utils.h

 // Copyright 2016 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_REGEXP_REGEXP_UTILS_H_
 #define V8_REGEXP_REGEXP_UTILS_H_
 
 #include "src/objects.h"
 
 namespace v8 {
 namespace internal {
 
+class RegExpMatchInfo;
+
 // Helper methods for C++ regexp builtins.
 class RegExpUtils : public AllStatic {
  public:
   // Last match info accessors.
   static Handle<String> GenericCaptureGetter(Isolate* isolate,
                                              Handle<RegExpMatchInfo> match_info,
                                              int capture, bool* ok = nullptr);
 
   // Last index (RegExp.lastIndex) accessors.
   static MUST_USE_RESULT MaybeHandle<Object> SetLastIndex(
@@ skipping 20 matching lines @@
                                 int index, bool unicode);
   static MUST_USE_RESULT MaybeHandle<Object> SetAdvancedStringIndex(
       Isolate* isolate, Handle<JSReceiver> regexp, Handle<String> string,
       bool unicode);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_REGEXP_REGEXP_UTILS_H_