Please review #191495 - Autocomplete of functions and constants from "root" namespace

Hi all,

Issue: http://netbeans.org/bugzilla/show_bug.cgi?id=191495

Fix: http://hg.netbeans.org/web-main/rev/598be003369f

Desc: When used autocompletion for completing global functions or constants,
backslash was added before completed function/constant name.

Impact: It decreases productivity. You have to delete a backslash every time
you complete global function or constant.

Risk: Almost no risk. Very small set of elements is affected. Just "global
constants".

Thanks,
Ondrej