fix double quick-doc loading in completion lookup
Log VM options on IDE start (IDEA-106247)
(cherry picked from commit f718b1a)
(with delay) show progress when initializing persistent maps, this is needed for rare case of index compaction
(cherry picked from commit d639282) [r=Eugene.Juravlev]
limit amount of memory used for index compaction to avoid OOME / gc issues
(cherry picked from commit 099ca9a) [r=Roman.Shevchenko]