Reminder to  improve Content Assist filtering while typing.

Signed-off-by: Timo Kinnunen <timo.kinnunen@gmail.com>
Improved Content Assist filtering while typing by not skipping over
non-Java identifier characters when searching for a matching character.

Signed-off-by: Timo Kinnunen <timo.kinnunen@gmail.com>
WIP for better incremental filtering.

Signed-off-by: Timo Kinnunen <timo.kinnunen@gmail.com>