Alex Hoppen 2f19d1847f [SourceKit] Add a dedicated request to retrieve the diagnostics of a file ...

Currently, SourceKit always implicitly sends diagnostics to the client after every edit. This doesn’t match our new cancellation story because diagnostics retrieval is no request and thus can’t be cancelled.

Instead, diagnostics retrieval should be a standalone request, which returns a cancellation token like every other request and which can thus also be cancelled as such.

The indented transition path here is to change all open and edit requests to be syntactic only. When diagnostics are needed, the new diagnostics request should be used.

rdar://83391522

2021-10-13 21:28:18 +02:00

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