Return an error when parsing invalid dates where a number immediately follows a word.

src/dateparser-inl.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 130 matching lines @@
       if (type == AM_PM && !time.IsEmpty()) {
         time.SetHourOffset(value);
       } else if (type == MONTH_NAME) {
         day.SetNamedMonth(value);
         scanner.SkipSymbol('-');
       } else if (type == TIME_ZONE_NAME && has_read_number) {
         tz.Set(value);
       } else {
         // Garbage words are illegal if a number has been read.
         if (has_read_number) return false;
+        // The first number has to be separated from garbage words by
+        // whitespace or other separators.
+        if (scanner.Peek().IsNumber()) return false;
       }
     } else if (token.IsAsciiSign() && (tz.IsUTC() || !time.IsEmpty())) {
       // Parse UTC offset (only after UTC or time).
       tz.SetSign(token.ascii_sign());
       // The following number may be empty.
       int n = 0;
       if (scanner.Peek().IsNumber()) {
         n = scanner.Next().number();
       }
       has_read_number = true;
@@ skipping 160 matching lines @@
   // Successfully parsed ES5 Date Time String. Default to UTC if no TZ given.
   if (tz->IsEmpty()) tz->Set(0);
   day->set_iso_date();
   return DateToken::EndOfInput();
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_DATEPARSER_INL_H_