Recognizing manually incremented index

idea/testData/intentions/loopToCallChain/indexWithNestedLoop.kt

@@ -0,0 +1,12 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Replace with '+= ...filterNot{}.mapIndexed{}'"
+fun foo(list: List<String>, target: MutableCollection<Int>) {
+    var i = 0
+    <caret>for (s in list) {
+        for (j in s.indices) {
+            if (j == 10) continue
+            target.add(i + j)
+            i++
+        }
+    }
+}