Recursion limit for one-char string replace and retire String::kMinNonFlatLength.

src/runtime.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 616 matching lines @@
   // Get the intrinsic function with the given name, which must be a symbol.
   static const Function* FunctionForSymbol(Handle<String> name);
 
   // Get the intrinsic function with the given FunctionId.
   static const Function* FunctionForId(FunctionId id);
 
   static Handle<String> StringReplaceOneCharWithString(Isolate* isolate,
                                                        Handle<String> subject,
                                                        Handle<String> search,
                                                        Handle<String> replace,
-                                                       bool* found);
+                                                       bool* found,
+                                                       int recursion_limit);
 
   // General-purpose helper functions for runtime system.
   static int StringMatch(Isolate* isolate,
                          Handle<String> sub,
                          Handle<String> pat,
                          int index);
 
   static bool IsUpperCaseChar(RuntimeState* runtime_state, uint16_t ch);
 
   // TODO(1240886): Some of the following methods are *not* handle safe, but
@@ skipping 49 matching lines @@
 //---------------------------------------------------------------------------
 // Constants used by interface to runtime functions.
 
 class DeclareGlobalsEvalFlag:     public BitField<bool,         0, 1> {};
 class DeclareGlobalsNativeFlag:   public BitField<bool,         1, 1> {};
 class DeclareGlobalsLanguageMode: public BitField<LanguageMode, 2, 2> {};
 
 } }  // namespace v8::internal
 
 #endif  // V8_RUNTIME_H_