Merge branch 'cquery-support' into master

Merge branch 'cquery-support' into master

The conflicts in eglot.el where fixed by calling the new eglot--debug
helper coming from 'cquery-support'. This helper was converted to
allow a non-string format passed directly to eglot--log-event.

Also fixed some compilation warnings.

* eglot.el (eglot--debug): Allow non-string FORMAT to be a JSON
object.  (eglot-handle-notification :$cquery/progress)
(eglot-handle-notification :$cquery/setInactiveRegions)
(eglot-handle-notification :$cquery/publishSemanticHighlighting):
Solve compilation warnings.