We also use different syntax in places where the original was known to be a source of problems.
For a trivial example, `unsigned long long` is annoyingly long to type, `ulong` is much better. `uint64` seems at first impression to be better because the bit length is in the name, but digits are harder to touch-type, not so pleasing to look at, and after using the language for a day the reminder that it is 64 bits gets tedious.
