Rename ascii to one-byte where applicable.

src/conversions.cc

 // 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.
 
 #include <limits.h>
 #include <stdarg.h>
 #include <cmath>
 
 #include "src/v8.h"
 
@@ skipping 472 matching lines @@
 }
 
 
 double StringToDouble(UnicodeCache* unicode_cache,
                       String* string,
                       int flags,
                       double empty_string_val) {
   DisallowHeapAllocation no_gc;
   String::FlatContent flat = string->GetFlatContent();
   // ECMA-262 section 15.1.2.3, empty string is NaN
-  if (flat.IsAscii()) {
+  if (flat.IsOneByte()) {
     return StringToDouble(
         unicode_cache, flat.ToOneByteVector(), flags, empty_string_val);
   } else {
     return StringToDouble(
         unicode_cache, flat.ToUC16Vector(), flags, empty_string_val);
   }
 }
 
 
 } }  // namespace v8::internal