move the calculation of configure kotlin notification out of EDT

#KT-10541 Fixed

idea/src/org/jetbrains/kotlin/idea/configuration/ConfigureKotlinInProjectUtils.kt

@@ -16,12 +16,16 @@
 
 package org.jetbrains.kotlin.idea.configuration
 
+import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.extensions.Extensions
 import com.intellij.openapi.module.Module
+import com.intellij.openapi.project.DumbService
 import com.intellij.openapi.project.Project
+import com.intellij.openapi.util.Computable
 import com.intellij.psi.search.FileTypeIndex
 import com.intellij.psi.search.GlobalSearchScope
 import org.jetbrains.kotlin.idea.KotlinFileType
+import org.jetbrains.kotlin.idea.configuration.ui.notifications.ConfigureKotlinNotification
 import org.jetbrains.kotlin.idea.util.projectStructure.allModules
 import org.jetbrains.kotlin.utils.ifEmpty
 
@@ -56,10 +60,17 @@ fun showConfigureKotlinNotificationIfNeeded(module: Module) {
 }
 
 fun showConfigureKotlinNotificationIfNeeded(project: Project, excludeModules: List<Module> = emptyList()) {
-    val modules = getModulesWithKotlinFiles(project) - excludeModules
+    ApplicationManager.getApplication().executeOnPooledThread {
-    if (modules.all { isModuleConfigured(it) }) return
+        val notificationString = DumbService.getInstance(project).runReadActionInSmartMode(Computable {
-
+            val modules = getModulesWithKotlinFiles(project) - excludeModules
-    ConfigureKotlinNotificationManager.notify(project, excludeModules)
+            if (modules.all { isModuleConfigured(it) }) null else ConfigureKotlinNotification.getNotificationString(project, excludeModules)
+        })
+        if (notificationString != null) {
+            ApplicationManager.getApplication().invokeLater {
+                ConfigureKotlinNotificationManager.notify(project, ConfigureKotlinNotification(project, excludeModules, notificationString))
+            }
+        }
+    }
 }
 
 fun getAbleToRunConfigurators(project: Project): Collection<KotlinProjectConfigurator> {

idea/src/org/jetbrains/kotlin/idea/configuration/ui/notifications/ConfigureKotlinNotification.kt

@@ -30,9 +30,10 @@ import javax.swing.event.HyperlinkEvent
 
 class ConfigureKotlinNotification(
         project: Project,
-        excludeModules: List<Module>) : Notification(KotlinConfigurationCheckerComponent.CONFIGURE_NOTIFICATION_GROUP_ID, "Configure Kotlin",
+        excludeModules: List<Module>,
-                                                     getNotificationString(project, excludeModules),
+        notificationString: String) : Notification(KotlinConfigurationCheckerComponent.CONFIGURE_NOTIFICATION_GROUP_ID, "Configure Kotlin",
-                                                     NotificationType.WARNING, NotificationListener { notification, event ->
+                                                   notificationString,
+                                                   NotificationType.WARNING, NotificationListener { notification, event ->
     if (event.eventType == HyperlinkEvent.EventType.ACTIVATED) {
         val configurator = getConfiguratorByName(event.description) ?: throw AssertionError("Missed action: " + event.description)
         notification.expire()
@@ -41,6 +42,9 @@ class ConfigureKotlinNotification(
     }
 }) {
 
+    constructor(project: Project, excludeModules: List<Module>)
+        : this(project, excludeModules, getNotificationString(project, excludeModules))
+
     override fun equals(o: Any?): Boolean {
         if (this === o) return true
         if (o !is ConfigureKotlinNotification) return false