Possible bug in DoubleParser.cs #7181

            int ichEnd;
            if (!DoubleParser.TryParse(span.Slice(ich, span.Length - ich), out value, out ichEnd, flags))
            {
                value = default(Double);
                return Result.Error;
            }

            // Make sure everything was consumed.
            while (ichEnd < span.Length)
            {
                if (!char.IsWhiteSpace(span[ichEnd]))
                    return Result.Extra;
                ichEnd++;
            }