Repl: enhance test framework to wait for commands to be processed, not some text to appear

idea/idea-repl/src/org/jetbrains/kotlin/console/CommandHistory.kt

@@ -25,7 +25,8 @@ class CommandHistory {
     )
 
     private val entries = arrayListOf<Entry>()
-    private var processedEntriesCount: Int = 0
+    var processedEntriesCount: Int = 0
+        private set
 
     val listeners = arrayListOf<HistoryUpdateListener>()
 

idea/idea-repl/src/org/jetbrains/kotlin/console/KotlinConsoleRunner.kt

@@ -67,7 +67,7 @@ public class KotlinConsoleRunner(
         title: String,
         path: String?
 ) : AbstractConsoleRunnerWithHistory<LanguageConsoleView>(myProject, title, path) {
-    internal val commandHistory = CommandHistory()
+    val commandHistory = CommandHistory()
 
     var isReadLineMode: Boolean = false
         set(value) {