[runtime] Port simple String.prototype.indexOf cases to TF Builtin

src/external-reference-table.cc

 // Copyright 2016 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/external-reference-table.h"
 
 #include "src/accessors.h"
 #include "src/assembler.h"
 #include "src/builtins/builtins.h"
 #include "src/counters.h"
@@ skipping 212 matching lines @@
   Add(ExternalReference::wasm_word64_popcnt(isolate).address(),
       "wasm::word64_popcnt");
   Add(ExternalReference::f64_acos_wrapper_function(isolate).address(),
       "f64_acos_wrapper");
   Add(ExternalReference::f64_asin_wrapper_function(isolate).address(),
       "f64_asin_wrapper");
   Add(ExternalReference::f64_mod_wrapper_function(isolate).address(),
       "f64_mod_wrapper");
   Add(ExternalReference::wasm_call_trap_callback_for_testing(isolate).address(),
       "wasm::call_trap_callback_for_testing");
+  Add(ExternalReference::libc_memchr_function(isolate).address(),
+      "libc_memchr");
   Add(ExternalReference::log_enter_external_function(isolate).address(),
       "Logger::EnterExternal");
   Add(ExternalReference::log_leave_external_function(isolate).address(),
       "Logger::LeaveExternal");
   Add(ExternalReference::address_of_minus_one_half().address(),
       "double_constants.minus_one_half");
   Add(ExternalReference::stress_deopt_count(isolate).address(),
       "Isolate::stress_deopt_count_address()");
   Add(ExternalReference::runtime_function_table_address(isolate).address(),
       "Runtime::runtime_function_table_address()");
@@ skipping 200 matching lines @@
     while (*api_external_references != 0) {
       Address address = reinterpret_cast<Address>(*api_external_references);
       Add(address, ResolveSymbol(address));
       api_external_references++;
     }
   }
 }
 
 }  // namespace internal
 }  // namespace v8