Minor: rename ForkJoinPoolPatcherForTeamCityTesting -> ThreadTrackerPatcherForTeamCityTesting

(cherry picked from commit c6b128e)

idea/src/org/jetbrains/kotlin/idea/PluginStartupComponent.java

@@ -55,7 +55,7 @@ public class PluginStartupComponent implements ApplicationComponent {
         registerPathVariable();
 
         if (ApplicationManager.getApplication().isUnitTestMode()) {
-            ForkJoinPoolPatcherForTeamCityTesting.INSTANCE.patchThreadTracker();
+            ThreadTrackerPatcherForTeamCityTesting.INSTANCE.patchThreadTracker();
         }
 
         JarUserDataManager.INSTANCE.register(KotlinJavaScriptLibraryDetectionUtil.HasKotlinJSMetadataInJar.INSTANCE);

idea/src/org/jetbrains/kotlin/idea/ThreadTrackerPatcherForTeamCityTesting.kt

@@ -32,7 +32,7 @@ Standard names for ForkJoinPool threads doesn't pass ThreadTracker.checkLeak() c
 As it's allowed to reorder tests on TeamCity and any test can be first at some point, this patch should be applied at
 some common place.
  */
-object ForkJoinPoolPatcherForTeamCityTesting {
+object ThreadTrackerPatcherForTeamCityTesting {
     private val patched = AtomicBoolean(false)
 
     fun patchThreadTracker() {