Added tests

idea/testData/intentions/useWithIndex/indexIncrementTwice.kt

@@ -0,0 +1,11 @@
+// WITH_RUNTIME
+// IS_APPLICABLE: false
+fun foo(list: List<String>): Int? {
+    var index = 0
+    <caret>for (s in list) {
+        val x = s.length * index++
+        index++
+        if (x > 0) return x
+    }
+    return null
+}

idea/testData/intentions/useWithIndex/indexUsedAfterLoop.kt

@@ -0,0 +1,11 @@
+// WITH_RUNTIME
+// IS_APPLICABLE: false
+fun foo(list: List<String>): Int {
+    var index = 0
+    <caret>for (s in list) {
+        val x = s.length * index++
+        print(x)
+        print(s)
+    }
+    return index
+}

idea/tests/org/jetbrains/kotlin/idea/intentions/IntentionTestGenerated.java

@@ -11591,12 +11591,24 @@ public class IntentionTestGenerated extends AbstractIntentionTest {
             doTest(fileName);
         }
 
+        @TestMetadata("indexIncrementTwice.kt")
+        public void testIndexIncrementTwice() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("idea/testData/intentions/useWithIndex/indexIncrementTwice.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("indexPlusPlusInsideExpression.kt")
         public void testIndexPlusPlusInsideExpression() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("idea/testData/intentions/useWithIndex/indexPlusPlusInsideExpression.kt");
             doTest(fileName);
         }
 
+        @TestMetadata("indexUsedAfterLoop.kt")
+        public void testIndexUsedAfterLoop() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("idea/testData/intentions/useWithIndex/indexUsedAfterLoop.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("prefixPlusPlusInsideExpression.kt")
         public void testPrefixPlusPlusInsideExpression() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("idea/testData/intentions/useWithIndex/prefixPlusPlusInsideExpression.kt");