FileStructure.MultiCueNoNewlineBetweenCues should parse successfully and return 2 cues

According to Kyle's last review, an entry such as

```
00:05.112 --> 00:09.114
Numero uno
00:11.114 --> 00:13.226
Numero dos
```

Should actually produce 2 cues (and perhaps a WEBVTT_EXPECTED_EOL error), and parse successfully, according to the parsing spec.

The test is currently expecting to fail parsing, and return 0 cues, for reasons I do not understand.