[Field()](https://github.com/elastic/elasticsearch-net/blob/2.x/src/Nest/Search/Suggesters/ContextSuggester/ISuggestContext.cs#L32) is misnamed and should really be `Path()` instead. We should mark `Field()` as deprecated and add `Path().` This is a 2.x issue only, as it's correct in [master](https://github.com/elastic/elasticsearch-net/blob/master/src/Nest/Search/Suggesters/ContextSuggester/ISuggestContext.cs#L40).
