rust: Rename LogContext->Context, LogSink->Sink

[gasmith]

Changelog

• LogContext renamed to Context
• LogContext::global renamed to Context::get_default.
• Context no longer implements Default, to avoid confusion.
• LogSink renamed to Sink

[linear]

FG-10741 Rust: Rename LogContext->Namespace, LogSink->Sink

[bryfox]

Could you comment on the choice of Namespace? I saw an argument that context may be confused with go logging contexts, but I think "context" has a lot of precedent with different meanings, and "namespace" doesn't necessarily solve that problem. I think "context" conveys more to me here, but admittedly this is based on features I imagine us introducing in future versions.

[gasmith]

Could you comment on the choice of Namespace?

After discussion, we've settled on keeping Context (but dropping the Log prefix).