Generalize Tom's conversion to float code for normal_distribution.
Generalize Tom's conversion to float code for normal_distribution.

UIKit0/thrust,julianromera/thrust,allendaicool/thrust,Vishwa07/thrust,UIKit0/thrust,h1arshad/thrust,google-code-export/thrust,hemmingway/thrust,rdmenezes/thrust,malenie/thrust,allendaicool/thrust,levendlee/thrust,lishi0927/thrust,julianromera/thrust,levendlee/thrust,rdmenezes/thrust,UIKit0/thrust,hemmingway/thrust,lishi0927/thrust,malenie/thrust,google-code-export/thrust,Vishwa07/thrust,lishi0927/thrust,bfurtaw/thrust,h1arshad/thrust,Vishwa07/thrust,lishi0927/thrust,malenie/thrust,julianromera/thrust,bfurtaw/thrust,bfurtaw/thrust,Vishwa07/thrust,levendlee/thrust,UIKit0/thrust,julianromera/thrust,h1arshad/thrust,rdmenezes/thrust,bfurtaw/thrust,levendlee/thrust,google-code-export/thrust,rdmenezes/thrust,allendaicool/thrust,malenie/thrust,allendaicool/thrust,hemmingway/thrust,h1arshad/thrust,google-code-export/thrust,hemmingway/thrust