[runtime] Replace %to_string_fun with %_ToString.

test/cctest/compiler/test-run-jscalls.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/v8.h"
 
 #include "test/cctest/compiler/function-tester.h"
 
 using namespace v8::internal;
 using namespace v8::internal::compiler;
@@ skipping 126 matching lines @@
   FunctionTester T("(function(a,b) { return %NumberAdd(a, b); })");
 
   T.CheckCall(T.Val(65), T.Val(42), T.Val(23));
   T.CheckCall(T.Val(19), T.Val(42), T.Val(-23));
   T.CheckCall(T.Val(6.5), T.Val(4.2), T.Val(2.3));
 }
 
 
 TEST(RuntimeCallJS) {
   FLAG_allow_natives_syntax = true;
-  FunctionTester T("(function(a) { return %to_string_fun(a); })");
+  FunctionTester T("(function(a) { return %non_string_to_string(a); })");
 
   T.CheckCall(T.Val("23"), T.Val(23), T.undefined());
   T.CheckCall(T.Val("4.2"), T.Val(4.2), T.undefined());
-  T.CheckCall(T.Val("str"), T.Val("str"), T.undefined());
   T.CheckCall(T.Val("true"), T.true_value(), T.undefined());
   T.CheckCall(T.Val("false"), T.false_value(), T.undefined());
   T.CheckCall(T.Val("undefined"), T.undefined(), T.undefined());
 }
 
 
 TEST(RuntimeCallInline) {
   FLAG_allow_natives_syntax = true;
   FunctionTester T("(function(a) { return %_IsSpecObject(a); })");
 
@@ skipping 86 matching lines @@
   v8::Context::Scope scope(context);
   v8::Local<v8::Value> value = CompileRun(script);
   i::Handle<i::Object> ofun = v8::Utils::OpenHandle(*value);
   i::Handle<i::JSFunction> jsfun = Handle<JSFunction>::cast(ofun);
   jsfun->set_code(T.function->code());
   jsfun->set_shared(T.function->shared());
   context->Global()->Set(v8_str("foo"), v8::Utils::ToLocal(jsfun));
   CompileRun("var x = 24;");
   ExpectObject("foo()", context->Global());
 }