Fix test file name.

js/js.tests/test/org/jetbrains/k2js/test/semantics/NativeInteropTest.java

@@ -76,7 +76,7 @@ public final class NativeInteropTest extends SingleFileTranslationTest {
         fooBoxTest();
     }
 
-    public void testKt2388() throws Exception {
+    public void testKt_2388() throws Exception {
         fooBoxTest();
     }
 }

js/js.translator/testFiles/native/native/Kt2388.js

@@ -1,3 +0,0 @@
-function _setTimeout(callback) {
-    callback.call({});
-}

js/js.translator/testFiles/native/native/kt_2388.js

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2010-2012 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+function _setTimeout(callback) {
+    callback.call({});
+}