IDEA-123289 Infer nullability of 'for each' variable from type annotations of the collection parameter
(cherry picked from commit 019a68b)
IDEA-122946 final modifier not inserted when completing a sequence of parameters from an inner method
IDEA-123493 Smart completion makes completed variable final
(cherry picked from commit 0fd86de)
missing test data
(cherry picked from commit 947d8ab)
IDEA-122383 PageUp/PageDown don't work in ShowUsages popup (Ctrl-Alt-F7)
(cherry picked from commit 7a2cc54)
goto popup calculations should be cancellable even after Ctrl+Space (IDEA-123714 ?)
(cherry picked from commit 3c769ac)