[builtins] Add String.prototype.indexOf fast path in TF

src/code-factory.cc

 // 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.
 
 #include "src/code-factory.h"
 
 #include "src/bootstrapper.h"
 #include "src/ic/ic.h"
 
 namespace v8 {
@@ skipping 276 matching lines @@
     case Token::GTE:
       return StringGreaterThanOrEqual(isolate);
     default:
       break;
   }
   UNREACHABLE();
   return StringEqual(isolate);
 }
 
 // static
+Callable CodeFactory::StringIndexOf(Isolate* isolate) {
+  return Callable(isolate->builtins()->StringIndexOf(),
+                  StringIndexOfDescriptor(isolate));
+}
+
+// static
 Callable CodeFactory::SubString(Isolate* isolate) {
   SubStringStub stub(isolate);
   return Callable(stub.GetCode(), stub.GetCallInterfaceDescriptor());
 }
 
 // static
 Callable CodeFactory::ResumeGenerator(Isolate* isolate) {
   return Callable(isolate->builtins()->ResumeGeneratorTrampoline(),
                   ResumeGeneratorDescriptor(isolate));
 }
@@ skipping 132 matching lines @@
 }
 
 // static
 Callable CodeFactory::FunctionPrototypeBind(Isolate* isolate) {
   return Callable(isolate->builtins()->FunctionPrototypeBind(),
                   BuiltinDescriptor(isolate));
 }
 
 }  // namespace internal
 }  // namespace v8