Groupped tests by folders

idea/testData/intentions/loopToCallChain/flatMap/flatMapTo.kt

@@ -0,0 +1,10 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Replace with 'flatMapTo(){}'"
+// INTENTION_TEXT_2: "Replace with 'asSequence().flatMapTo(){}'"
+fun foo(list: List<String>, target: MutableList<String>) {
+    <caret>for (s in list) {
+        for (line in s.lines()) {
+            target.add(line)
+        }
+    }
+}