Move util function closer to its usage and remove empty file

compiler/tests-common/org/jetbrains/kotlin/scripts/TestScriptDefinitions.kt

@@ -1,30 +0,0 @@
-/*
- * Copyright 2010-2016 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.
- */
-
-package org.jetbrains.kotlin.scripts
-
-import java.io.File
-import java.net.URL
-import java.net.URLClassLoader
-
-fun URL.toFile() =
-    try {
-        File(toURI().schemeSpecificPart)
-    }
-    catch (e: java.net.URISyntaxException) {
-        if (protocol != "file") null
-        else File(file)
-    }

compiler/tests/org/jetbrains/kotlin/scripts/ScriptTest2.kt

@@ -35,6 +35,8 @@ import org.junit.Test
 import java.io.File
 import java.lang.Exception
 import java.lang.reflect.InvocationTargetException
+import java.net.URISyntaxException
+import java.net.URL
 import java.net.URLClassLoader
 import java.util.concurrent.Future
 import kotlin.reflect.KClass
@@ -258,6 +260,15 @@ class TestKotlinScriptDependenciesResolver : ScriptDependenciesResolver {
                     ?.mapNotNull { it.toFile() }
                     ?.filter { it.path.contains("out") && it.path.contains("test") }
             ?: emptyList()
+
+    private fun URL.toFile() =
+            try {
+                File(toURI().schemeSpecificPart)
+            }
+            catch (e: URISyntaxException) {
+                if (protocol != "file") null
+                else File(file)
+            }
 }
 
 @ScriptTemplateDefinition(