Allow popup to be used instead of preview in completeopt #2942
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Some language servers send additional info (e.g. documentation, see #2905) along with auto-completion which is displayed in a preview window or not displayed at all, depending on whether
preview
is present incompleteopt
. For certain language severs (e.g.pyls
), thepreview
option causes the window content to move which is very annoying (see #2463). However, the user may still want to see the extra info by using thepopup
option forcompleteopt
, but sincecompleteopt
is overwritten byALE
before calling the auto-complete, this is not currently possible. This PR makesALE
respect thepopup
setting if the user has set it.