Do not generate redundant .toList()

idea/testData/intentions/loopToCallChain/assignFilterIndexed.kt

@@ -0,0 +1,13 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Replace with 'filterIndexed{}'"
+import java.util.*
+
+fun foo(list: List<String>): List<String> {
+    val result = ArrayList<String>()
+    <caret>for ((index, s) in list.withIndex()) {
+        if (s.length > index) {
+            result.add(s)
+        }
+    }
+    return result
+}

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

@@ -0,0 +1,8 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Replace with 'filterIndexed{}'"
+import java.util.*
+
+fun foo(list: List<String>): List<String> {
+    val <caret>result = list.filterIndexed { index, s -> s.length > index }
+    return result
+}

idea/testData/intentions/loopToCallChain/assignFilterNotNull.kt

@@ -0,0 +1,13 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Replace with 'filterNotNull()'"
+import java.util.ArrayList
+
+fun foo(list: List<String?>): List<String> {
+    val result = ArrayList<String>()
+    <caret>for (s in list) {
+        if (s != null) {
+            result.add(s)
+        }
+    }
+    return result
+}

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

@@ -0,0 +1,8 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Replace with 'filterNotNull()'"
+import java.util.ArrayList
+
+fun foo(list: List<String?>): List<String> {
+    val <caret>result = list.filterNotNull()
+    return result
+}

idea/testData/intentions/loopToCallChain/assignMap2.kt

@@ -0,0 +1,14 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Replace with 'filter{}.map{}'"
+import java.util.ArrayList
+
+fun foo(list: List<String>): List<Int> {
+    val result = ArrayList<Int>()
+    <caret>for (s in list) {
+        if (s.length > 0) {
+            val h = s.hashCode()
+            result.add(h)
+        }
+    }
+    return result
+}

idea/testData/intentions/loopToCallChain/assignMap2.kt.after

@@ -0,0 +1,10 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Replace with 'filter{}.map{}'"
+import java.util.ArrayList
+
+fun foo(list: List<String>): List<Int> {
+    val <caret>result = list
+            .filter { it.length > 0 }
+            .map { it.hashCode() }
+    return result
+}