clonePopulator method
Creates a SignMagnitudeValuePopulator for the same type as this
and
with the same widths.
This must be overridden in subclasses so that the correct type of SignMagnitudeValuePopulator is returned for generating equivalent types of SignMagnitudeValues.
Implementation
@mustBeOverridden
SignMagnitudeValuePopulator clonePopulator() => SignMagnitudeValuePopulator(
SignMagnitudeValue.uninitialized()..width = width);