Re: Map float to int

[Hlaaftana]

Also, the reason you got your cryptic error is that there are multiple symbols 
named `toInt`, your proc is already defined in [the system 
module](https://nim-lang.org/docs/system.html#toInt%2Cfloat). This error 
message has to be changed already, the [first github issue for 
it](https://github.com/nim-lang/Nim/issues/6359) was opened in 2017.