function abs2f( x ) {
	return addon( x );
}
Computes the squared absolute value of a single-precision floating-point number `x`.

@private
@param {number} x - input value
@returns {number} squared absolute value

@example
var v = abs2f( -1.0 );
// returns 1.0

@example
var v = abs2f( 2.0 );
// returns 4.0

@example
var v = abs2f( 0.0 );
// returns 0.0

@example
var v = abs2f( -0.0 );
// returns 0.0

@example
var v = abs2f( NaN );
// returns NaN