Added more tests

tests/programs/div.q

@@ -0,0 +1,9 @@
+main() {
+	assert 0 / 1 == 0
+	assert 1 / 1 == 1
+	assert 1 / 2 == 0
+	assert 2 / 1 == 2
+	assert 2 / 2 == 1
+	assert 4 / 2 == 2
+	assert 8 / 2 == 4
+}