Content in “16F690”

So apparently pin 11 can be used as Vdd and pin 10 as Vss?

so I accidentally plugged in my PIC backwards in my circuit on my bread board.  When the led didn't light (it was supposed to blink), I assumed I got the code wrong and had the led connected to the wrong pin, so I plugged the led in different placed until the led flashed, then I realized it was the right pin, just wrong side.

 Is the chip smart enough to figure out what I want as input voltage?  If the pins can be used as power source and ground, why isn't it listed as such in the data sheet?