Supported indexOf/lastIndexOf

idea/testData/intentions/loopToCallChain/indexOf.kt

@@ -0,0 +1,10 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Replace with 'indexOf()'"
+fun foo(list: List<String>): Int {
+    <caret>for ((index, s) in list.withIndex()) {
+        if (s == "a") {
+            return index
+        }
+    }
+    return -1
+}

idea/testData/intentions/loopToCallChain/indexOf.kt.after

@@ -0,0 +1,5 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Replace with 'indexOf()'"
+fun foo(list: List<String>): Int {
+    <caret>return list.indexOf("a")
+}

idea/testData/intentions/loopToCallChain/lastIndexOf.kt

@@ -0,0 +1,10 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Replace with 'lastIndexOf()'"
+fun foo(list: List<String>) {
+    var result = -1
+    <caret>for ((index, s) in list.withIndex()) {
+        if (s == "a") {
+            result = index
+        }
+    }
+}

idea/testData/intentions/loopToCallChain/lastIndexOf.kt.after

@@ -0,0 +1,5 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Replace with 'lastIndexOf()'"
+fun foo(list: List<String>) {
+    val <caret>result = list.lastIndexOf("a")
+}