[stubs] Add RegExpReplace and RegExpSplit stubs

src/code-factory.h

Index: src/code-factory.h
diff --git a/src/code-factory.h b/src/code-factory.h
index a15bd28a5e7b9a43022cd2ba0677094ba4ea487f..d8f93bf928b59c54a9471f2b84db2518ddb389ae 100644
--- a/src/code-factory.h
+++ b/src/code-factory.h
@@ -132,6 +132,9 @@ class V8_EXPORT_PRIVATE CodeFactory final {
   static Callable SubString(Isolate* isolate);
   static Callable StringIndexOf(Isolate* isolate);
 
+  static Callable RegExpReplace(Isolate* isolate);
+  static Callable RegExpSplit(Isolate* isolate);
+
   static Callable ClassOf(Isolate* isolate);
   static Callable Typeof(Isolate* isolate);
   static Callable GetSuperConstructor(Isolate* isolate);