Hello,
There seems to a bug when parsing "'":
With the following code visual assist fails to show the functions below "'".
double f1(){return 0.;}
double i = 1000'000;
double f2(){return i;}

If I delete the "'" every thing works fine.

VA_X.dll file version 10.9.2089.0 built 2016.02.01
DevEnv.exe version 14.0.24720.0 Enterprise
msenv.dll version 14.0.24720.0
Comctl32.dll version 6.10.9600.18006
Windows 8.1 6.3 Build 9600
8 processors (x86-64, WOW64)
Language info: 1252, 0x407