Trevor Spiteri aca37b65f1 stabilize const_int_pow
Also stabilize constctlz for const ctlz_nonzero.

The public methods stabilized const by this commit are:

  * `{i*,u*}::checked_pow`
  * `{i*,u*}::saturating_pow`
  * `{i*,u*}::wrapping_pow`
  * `{i*,u*}::overflowing_pow`
  * `{i*,u*}::pow`
  * `u*::next_power_of_two`
  * `u*::checked_next_power_of_two`
  * `u*::wrapping_next_power_of_two` (the method itself is still unstable)
2020-11-23 01:58:27 +01:00
..
2020-11-23 01:58:27 +01:00