Don't delete Idea temporary folder on JVM shutdown

Before parallelization we don't delete Idea folders after test execution.
  Now there is problem with failing test on Teamcity.
  So try to keep folder undeleted (maybe there is some working daemon)

compiler/tests-common/tests/org/jetbrains/kotlin/test/KotlinTestUtils.java

@@ -120,7 +120,7 @@ public class KotlinTestUtils {
 
     static {
         try {
-            IDEA_SYSTEM_PATH = tmpDirForReusableFolder("idea-system").getPath();
+            IDEA_SYSTEM_PATH = FileUtil.createTempDirectory(new File(System.getProperty("java.io.tmpdir")), "idea-system", "", false).getPath();
         }
         catch (IOException e) {
             throw new RuntimeException(e);