Review callers of getNewLineOrDefaultFromHost that don't pass format settings

[amcasey]

The parameter is optional to avoid breaking consumers, but internal callers should probably always pass format settings.

[weswigham]

The two major callers are in services - where getNewLineOrDefaultFromHost is used to implement getNewLine in the CompilerHost used to typecheck (no formatting options available AFAIK), and in getDocCommentTemplateAtPosition - the second one could probably use a formatting options passthru, but is a public LanguageService API defined to not take one (a public API we have zero test coverage or internal uses for btw). Audit complete, everything is probably fine as-is, at least until we see a request for getDocCommentTemplateAtPosition to respect format settings-based line endings from whoever uses it.