Implement "legacy" REPL wrappers on top of the "new" scripting infrastructure

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/repl/AggregatedReplState.kt

@@ -96,5 +96,11 @@ open class AggregatedReplStageState<T1, T2>(val state1: IReplStageState<T1>, val
     override fun getNextLineNo() = state1.getNextLineNo()
 
     override val currentGeneration: Int get() = state1.currentGeneration
+
+    override fun dispose() {
+        state2.dispose()
+        state1.dispose()
+        super.dispose()
+    }
 }
 

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/repl/ReplApi.kt

@@ -90,7 +90,8 @@ sealed class ReplCompileResult : Serializable {
                           val classes: List<CompiledClassData>,
                           val hasResult: Boolean,
                           val classpathAddendum: List<File>,
-                          val type: String?
+                          val type: String?,
+                          val data: Any? // TODO: temporary; migration to new scripting infrastructure
     ) : ReplCompileResult() {
         companion object { private val serialVersionUID: Long = 2L }
     }

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/repl/ReplState.kt

@@ -63,7 +63,6 @@ interface IReplStageState<T> {
         else throw IllegalArgumentException("$this is not an expected instance of IReplStageState")
 
     fun dispose() {
-        history.reset()
     }
 }