Find Usages on "override val" in constructor asks about base usages

Also fix long-standing bug with "title" parameter being ignored when
displaying messages

 #KT-17845 Fixed

idea/idea-core/src/org/jetbrains/kotlin/idea/core/util/messages.kt

@@ -25,7 +25,7 @@ import javax.swing.Icon
 
 fun showYesNoCancelDialog(key: String, project: Project, message: String, title: String, icon: Icon, default: Int?): Int {
     return if (!ApplicationManager.getApplication().isUnitTestMode) {
-        Messages.showYesNoCancelDialog(project, message, message, icon)
+        Messages.showYesNoCancelDialog(project, message, title, icon)
     }
     else {
         callInTestMode(key, default)