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

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

@@ -0,0 +1,33 @@
+package foo
+
+fun box(): String {
+    val bar = 12
+
+    val baz = {
+        var result = "test1 "
+        if (true) {
+            val bar = "some text"
+            result += bar
+        }
+        result += bar
+        result
+    }
+
+    val r1 = baz()
+    if (r1 != "test1 some text12") return "r1 = $r1";
+
+    val boo = {
+        var result = "test2 "
+        result += bar
+        if (true) {
+            val bar = 4
+            result += bar
+        }
+        result
+    }
+
+    val r2 = boo()
+    if (r2 != "test2 124") return "r2 = $r2";
+
+    return "OK"
+}