[runtime] Replace %to_string_fun with %_ToString.

src/runtime/runtime-date.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/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/conversions-inl.h"
 #include "src/date.h"
 #include "src/dateparser-inl.h"
@@ skipping 82 matching lines @@
     millis += Floor(isolate->heap()->synthetic_time());
   } else {
     millis = Floor(base::OS::TimeCurrentMillis());
   }
   return *isolate->factory()->NewNumber(millis);
 }
 
 
 RUNTIME_FUNCTION(Runtime_DateParseString) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 2);
-  CONVERT_ARG_HANDLE_CHECKED(String, str, 0);
+  DCHECK_EQ(2, args.length());
+  CONVERT_ARG_HANDLE_CHECKED(Object, input, 0);
   CONVERT_ARG_HANDLE_CHECKED(JSArray, output, 1);
 
   RUNTIME_ASSERT(output->HasFastElements());
   JSObject::EnsureCanContainHeapObjectElements(output);
   RUNTIME_ASSERT(output->HasFastObjectElements());
   Handle<FixedArray> output_array(FixedArray::cast(output->elements()));
   RUNTIME_ASSERT(output_array->length() >= DateParser::OUTPUT_SIZE);
 
+  Handle<String> str;
+  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, str,
+                                     Object::ToString(isolate, input));
+
   str = String::Flatten(str);
   DisallowHeapAllocation no_gc;
 
   bool result;
   String::FlatContent str_content = str->GetFlatContent();
   if (str_content.IsOneByte()) {
     result = DateParser::Parse(str_content.ToOneByteVector(), *output_array,
                                isolate->unicode_cache());
   } else {
     DCHECK(str_content.IsTwoByte());
@@ skipping 64 matching lines @@
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_CHECKED(JSDate, date, 0);
   CONVERT_SMI_ARG_CHECKED(index, 1);
   DCHECK_LE(0, index);
   if (index == 0) return date->value();
   return JSDate::GetField(date, Smi::FromInt(index));
 }
 
 }  // namespace internal
 }  // namespace v8