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

src/builtins/builtins.h

Index: src/builtins/builtins.h
diff --git a/src/builtins/builtins.h b/src/builtins/builtins.h
index 5673ce21e0901bff74b36a0c7400e7a7d813a199..c90a7ebc0c7456c2c9cdd110436d56085b646dca 100644
--- a/src/builtins/builtins.h
+++ b/src/builtins/builtins.h
@@ -126,14 +126,15 @@ namespace internal {
   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(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(StringIndexOf, BUILTIN, kNoExtraICState, StringIndexOf)                  \
+  TFS(StringLessThan, BUILTIN, kNoExtraICState, Compare)                       \
+  TFS(StringLessThanOrEqual, BUILTIN, kNoExtraICState, Compare)                \
+  TFS(StringNotEqual, BUILTIN, kNoExtraICState, Compare)                       \
                                                                                \
   /* Interpreter */                                                            \
   ASM(InterpreterEntryTrampoline)                                              \