Add more test cases

Author: tamasvajk

java/ql/test/kotlin/query-tests/ConstantLoopCondition/A.kt

@@ -2,9 +2,23 @@ fun fn0(f: Function0<Unit>) = f()
 
 fun fn1() {
     var c = true
-    while (c) {
+    while (c) { // TODO: false positive
         fn0 {
             c = false
         }
     }
+
+    var d = true
+    while (d) {
+        fn0 {
+            println(d)
+        }
+    }
+
+    val e = true
+    while (e) {
+        fn0 {
+            println(e)
+        }
+    }
 }

java/ql/test/kotlin/query-tests/ConstantLoopCondition/ConstantLoopCondition.expected

@@ -1 +1,3 @@
 | A.kt:5:12:5:12 | c | $@ might not terminate, as this loop condition is constant within the loop. | A.kt:5:5:9:5 | while (...) | Loop |
+| A.kt:12:12:12:12 | d | $@ might not terminate, as this loop condition is constant within the loop. | A.kt:12:5:16:5 | while (...) | Loop |
+| A.kt:19:12:19:12 | e | $@ might not terminate, as this loop condition is constant within the loop. | A.kt:19:5:23:5 | while (...) | Loop |