Support deduction of auto variables on mouse-over

Currently, when putting mouse over variable of known type, a tooltip appears telling me exact declaration of the variable (with type and variable name).

However, if variable is declared with keyword 'auto', mouse-over tooltip contains only variable name, not the deduced type.

It would be much easier to navigate and understand the code (especially not written by me) if mouse-over tooltip would contain deduced type.

I believe that Clang Code Model should be able to support that feature.