Basic support for "add" to collection used inside the loop

idea/testData/intentions/loopToCallChain/resultCollectionUsedInsideLoop.kt

@@ -0,0 +1,12 @@
+// WITH_RUNTIME
+import java.util.ArrayList
+
+fun foo(list: List<String>): List<Int> {
+    val result = ArrayList<Int>()
+    <caret>for (s in list) {
+        if (s.length > result.size) {
+            result.add(s.hashCode())
+        }
+    }
+    return result
+}