test: fix method name

Signed-off-by: Athan <[email protected]>

Author: kgryte

lib/node_modules/@stdlib/dstructs/named-typed-tuple/test/test.slice.js

@@ -43,8 +43,8 @@ tape( 'a tuple has a `slice` method', function test( t ) {
 	});
 	p = new Point( [ 10, 20 ] );
 
-	t.strictEqual( hasOwnProp( p, 'toJSON' ), true, 'returns expected value' );
-	t.strictEqual( isFunction( p.toJSON ), true, 'returns expected value' );
+	t.strictEqual( hasOwnProp( p, 'slice' ), true, 'returns expected value' );
+	t.strictEqual( isFunction( p.slice ), true, 'returns expected value' );
 	t.end();
 });