Use assertion utility

Author: kgryte

lib/node_modules/@stdlib/array/to-iterator/benchmark/benchmark.js

@@ -22,6 +22,7 @@
 
 var bench = require( '@stdlib/bench' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var isIteratorLike = require( '@stdlib/assert/is-iterator-like' );
 var pkg = require( './../package.json' ).name;
 var array2iterator = require( './../lib' );
 
@@ -44,7 +45,7 @@ bench( pkg, function benchmark( b ) {
 		}
 	}
 	b.toc();
-	if ( typeof iter !== 'object' || typeof iter.next !== 'function' ) {
+	if ( !isIteratorLike( iter ) ) {
 		b.fail( 'should return an iterator protocol-compliant object' );
 	}
 	b.pass( 'benchmark finished' );