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

idea/testData/intentions/loopToCallChain/assignFilter.kt

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

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

@@ -0,0 +1,7 @@
+// WITH_RUNTIME
+import java.util.ArrayList
+
+fun foo(list: List<String>): List<String> {
+    <caret>val result = list.filter { it.length > 0 }
+    return result
+}

idea/testData/intentions/loopToCallChain/assignMap.kt

@@ -0,0 +1,11 @@
+// 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 > 0)
+            result.add(s.hashCode())
+    }
+    return result
+}

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

@@ -0,0 +1,9 @@
+// WITH_RUNTIME
+import java.util.ArrayList
+
+fun foo(list: List<String>): List<Int> {
+    val result = list
+            .filter { it.length > 0 }
+            .map { it.hashCode() }
+    return result
+}

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
+}

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

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

idea/testData/intentions/loopToCallChain/toList.kt

@@ -0,0 +1,10 @@
+// WITH_RUNTIME
+import java.util.ArrayList
+
+fun foo(map: Map<Int, String>): List<String> {
+    val result = ArrayList<String>()
+    <caret>for (s in map.values) {
+        result.add(s)
+    }
+    return result
+}

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

@@ -0,0 +1,7 @@
+// WITH_RUNTIME
+import java.util.ArrayList
+
+fun foo(map: Map<Int, String>): List<String> {
+    <caret>val result = map.values.toList()
+    return result
+}

idea/testData/intentions/loopToCallChain/toSet.kt

@@ -0,0 +1,10 @@
+// WITH_RUNTIME
+import java.util.HashSet
+
+fun foo(map: Map<Int, String>): Collection<String> {
+    val result = HashSet<String>()
+    <caret>for (s in map.values) {
+        result.add(s)
+    }
+    return result
+}

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

@@ -0,0 +1,7 @@
+// WITH_RUNTIME
+import java.util.HashSet
+
+fun foo(map: Map<Int, String>): Collection<String> {
+    <caret>val result = map.values.toSet()
+    return result
+}

idea/testData/intentions/loopToCallChain/toSetWithMap.kt

@@ -0,0 +1,10 @@
+// WITH_RUNTIME
+import java.util.HashSet
+
+fun foo(map: Map<Int, String>): Collection<Int> {
+    val result = HashSet<Int>()
+    <caret>for (s in map.values) {
+        result.add(s.length)
+    }
+    return result
+}

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

@@ -0,0 +1,9 @@
+// WITH_RUNTIME
+import java.util.HashSet
+
+fun foo(map: Map<Int, String>): Collection<Int> {
+    <caret>val result = map.values
+            .map { it.length }
+            .toSet()
+    return result
+}