[php-langspec][Issue #242] - Misleading conversion float to int

You can view the Issue on github:
https://github.com/php/php-langspec/issues/242

Opened By: Tomanhez
Issue Description:
![Screenshot 2019-09-25 at 16 10 00](https://user-images.githubusercontent.com/39232096/65609038-68adc400-dfaf-11e9-9d5f-5bd37d3dc6b4.png)

If you have float var where decimal variable is 05, like this: 33.05 and multiply it by 100 
You mistakenly get 3305 but if convert it on int you have 3304

Certainly occurs in php 7.1.25 - 7.4.0