JS: create new common directory for all generated tests, migrate several tests there

js/js.translator/testData/box/closure/closureLocalFunctionByInnerFunction.kt

@@ -0,0 +1,26 @@
+package foo
+
+fun box(): String {
+    fun simple(s: String? = null): String {
+        if (s != null) return s
+
+        return myRun {
+            simple("OK")
+        }
+    }
+
+    if (simple("OK") != "OK") return "failed on simple recursion"
+
+    val ok = "OK"
+    fun withClosure(s: String? = null): String {
+        if (s != null) return s
+
+        return ok + myRun {
+            withClosure(ok)
+        }
+    }
+
+    if (withClosure() != ok + ok) return "failed when closure something"
+
+    return "OK"
+}