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

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

@@ -0,0 +1,14 @@
+package foo
+
+val k = { "K" }
+
+fun test(): String {
+    val o = { "O" }
+
+    val funLit = { o() + k() }
+    return funLit()
+}
+
+fun box(): String {
+    return test()
+}