Add 32bit output for mul2

testsuite/tests/numeric/should_run/mul2.stdout-ws-32

+-----
+Doing 5 * 6
+High: 0
+Low: 30
+Result: 30
+-----
+Doing 4265016088 * 49
+High: 48
+Low: 2827358104
+Result: 208985788312
+-----
+Doing 4265016088 * 4213832810
+High: 4184447398
+Low: 549951472
+Result: 17972064726792247280