Supported index++ pattern as non-last statement and even inside expressions

idea/testData/intentions/loopToCallChain/prefixIndexPlusPlusInsideExpression.kt

@@ -0,0 +1,11 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Replace with 'filterNot{}.mapIndexed{}.firstOrNull{}'"
+fun foo(list: List<String>): Int? {
+    var index = 0
+    <caret>for (s in list) {
+        if (s.isBlank()) continue
+        val x = s.length * ++index
+        if (x > 0) return x
+    }
+    return null
+}