Groupped tests by folders

idea/testData/intentions/loopToCallChain/map/map.kt

@@ -0,0 +1,10 @@
+// WITH_RUNTIME
+// INTENTION_TEXT: "Replace with 'map{}.firstOrNull{}'"
+// INTENTION_TEXT_2: "Replace with 'asSequence().map{}.firstOrNull{}'"
+fun foo(list: List<String>): Int? {
+    <caret>for (s in list) {
+        val length = s.length
+        if (length > 0) return length
+    }
+    return null
+}