cgen: fix array sort error (#11046)

vlib/builtin/array_test.v

@@ -897,6 +897,24 @@ fn test_i64_sort() {
 	assert f[6] == 79
 }
 
+fn test_a_b_paras_sort() {
+	mut arr_i := [1, 3, 2]
+	arr_i.sort(a < b)
+	println(arr_i)
+	assert arr_i == [1, 2, 3]
+	arr_i.sort(b < a)
+	println(arr_i)
+	assert arr_i == [3, 2, 1]
+
+	mut arr_f := [1.1, 3.3, 2.2]
+	arr_f.sort(a < b)
+	println(arr_f)
+	assert arr_f == [1.1, 2.2, 3.3]
+	arr_f.sort(b < a)
+	println(arr_f)
+	assert arr_f == [3.3, 2.2, 1.1]
+}
+
 /*
 fn test_for_last() {
 	numbers := [1, 2, 3, 4]