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

src/builtins/builtins.h

 // Copyright 2011 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_BUILTINS_BUILTINS_H_
 #define V8_BUILTINS_BUILTINS_H_
 
 #include "src/base/flags.h"
 #include "src/handles.h"
 
@@ skipping 108 matching lines @@
   ASM(Apply)                                                                   \
   ASM(JSEntryTrampoline)                                                       \
   ASM(JSConstructEntryTrampoline)                                              \
   ASM(ResumeGeneratorTrampoline)                                               \
                                                                                \
   /* Stack and interrupt check */                                              \
   ASM(InterruptCheck)                                                          \
   ASM(StackCheck)                                                              \
                                                                                \
   /* String helpers */                                                         \
+  TFS(StringCharAt, BUILTIN, kNoExtraICState, StringCharAt)                    \
+  TFS(StringCharCodeAt, BUILTIN, kNoExtraICState, StringCharCodeAt)            \
   TFS(StringEqual, BUILTIN, kNoExtraICState, Compare)                          \
-  TFS(StringNotEqual, BUILTIN, kNoExtraICState, Compare)                       \
+  TFS(StringGreaterThan, BUILTIN, kNoExtraICState, Compare)                    \
+  TFS(StringGreaterThanOrEqual, BUILTIN, kNoExtraICState, Compare)             \
+  TFS(StringIndexOf, BUILTIN, kNoExtraICState, StringIndexOf)                  \
   TFS(StringLessThan, BUILTIN, kNoExtraICState, Compare)                       \
   TFS(StringLessThanOrEqual, BUILTIN, kNoExtraICState, Compare)                \
-  TFS(StringGreaterThan, BUILTIN, kNoExtraICState, Compare)                    \
-  TFS(StringGreaterThanOrEqual, BUILTIN, kNoExtraICState, Compare)             \
-  TFS(StringCharAt, BUILTIN, kNoExtraICState, StringCharAt)                    \
-  TFS(StringCharCodeAt, BUILTIN, kNoExtraICState, StringCharCodeAt)            \
+  TFS(StringNotEqual, BUILTIN, kNoExtraICState, Compare)                       \
                                                                                \
   /* Interpreter */                                                            \
   ASM(InterpreterEntryTrampoline)                                              \
   ASM(InterpreterPushArgsAndCall)                                              \
   ASM(InterpreterPushArgsAndCallFunction)                                      \
   ASM(InterpreterPushArgsAndTailCall)                                          \
   ASM(InterpreterPushArgsAndTailCallFunction)                                  \
   ASM(InterpreterPushArgsAndConstruct)                                         \
   ASM(InterpreterPushArgsAndConstructFunction)                                 \
   ASM(InterpreterPushArgsAndConstructArray)                                    \
@@ skipping 785 matching lines @@
 
   friend class Isolate;
 
   DISALLOW_COPY_AND_ASSIGN(Builtins);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BUILTINS_BUILTINS_H_