Feature: inline completions #5550

Job	Run time
test (ubuntu-latest, 27.2, false)	1m 35s
test (ubuntu-latest, 28.2, false)	1m 29s
test (ubuntu-latest, 29.4, false)	1m 38s
test (macos-latest, 28.2, false)	3m 25s
test (macos-latest, 29.4, false)	3m 41s
test (windows-latest, 27.2, false)	2m 57s
test (windows-latest, 28.2, false)	3m 11s
test (windows-latest, 29.4, false)	3m 2s
test (ubuntu-latest, snapshot, true)	1m 6s
test (macos-latest, snapshot, true)	1m 51s
test (windows-latest, snapshot, true)	1m 46s
	25m 41s

Provide feedback