Content assist: subwords autocompletion improvement - match behavior of old Code recommenders

Hello, there was once Code recommenders project, that is now archived:
https://repo.eclipse.org/content/shadows/releases.unzip/org/eclipse/recommenders/stable/2.5.4/stable-2.5.4.zip-unzip/

It had a neat feature called subwords autocompletion:

I know eclipse has a setting for subword matches:
but it is lacking in how it searches in strings.

For example in searching with Code recommenders and typing
"Dbu.getrs" gives you:

While searching for the same text with Eclipse's standard content assist and subword matches turned on yields:

Code recommenders way of searching was superior to what is available now and **lets you navigate through type and method names much faster**. I'm still using old Code recommenders, but it is way outdated and may eventually stop working completely with new versions of Eclipse .