[scripting] Move earlierScripts to the frontend descriptor

^KT-20488 fixed

libraries/scripting/jvm-host/src/kotlin/script/experimental/jvmhost/repl/legacyReplEvaluation.kt

@@ -47,9 +47,7 @@ class JvmReplEvaluator(
         val lastSnippetClass = history.peek()?.item?.first
         val historyBeforeSnippet = history.previousItems(compileResult.lineId).map { it.second }.toList()
         val currentConfiguration = ScriptEvaluationConfiguration(baseScriptEvaluationConfiguration) {
-            if (historyBeforeSnippet.isNotEmpty()) {
-                previousSnippets.put(historyBeforeSnippet)
-            }
+            previousSnippets.put(historyBeforeSnippet)
             if (lastSnippetClass != null) {
                 jvm {
                     baseClassLoader(lastSnippetClass.java.classLoader)

libraries/scripting/jvm/src/kotlin/script/experimental/jvm/BasicJvmReplEvaluator.kt

@@ -37,9 +37,7 @@ class BasicJvmReplEvaluator(val scriptEvaluator: ScriptEvaluator = BasicJvmScrip
         val lastSnippetClass = history.lastItem()?.first
         val historyBeforeSnippet = history.items.map { it.second }
         val currentConfiguration = ScriptEvaluationConfiguration(configuration) {
-            if (historyBeforeSnippet.isNotEmpty()) {
-                previousSnippets.put(historyBeforeSnippet)
-            }
+            previousSnippets.put(historyBeforeSnippet)
             if (lastSnippetClass != null) {
                 jvm {
                     lastSnippetClassLoader(lastSnippetClass.java.classLoader)

libraries/scripting/jvm/src/kotlin/script/experimental/jvm/BasicJvmScriptEvaluator.kt

@@ -19,12 +19,16 @@ open class BasicJvmScriptEvaluator : ScriptEvaluator {
 
             // configuration shared between all module scripts
             val sharedConfiguration = scriptEvaluationConfiguration.getOrPrepareShared(scriptClass.java.classLoader)
-
+            val configurationForOtherScripts by lazy {
+                sharedConfiguration.with {
+                    reset(ScriptEvaluationConfiguration.previousSnippets)
+                }
+            }
             val sharedScripts = sharedConfiguration[ScriptEvaluationConfiguration.jvm.scriptsInstancesSharingMap]
 
             sharedScripts?.get(scriptClass)?.asSuccess()
                 ?: compiledScript.otherScripts.mapSuccess {
-                    invoke(it, sharedConfiguration)
+                    invoke(it, configurationForOtherScripts)
                 }.onSuccess { importedScriptsEvalResults ->
 
                     val refinedEvalConfiguration =
@@ -70,9 +74,7 @@ open class BasicJvmScriptEvaluator : ScriptEvaluator {
         val args = ArrayList<Any?>()
 
         refinedEvalConfiguration[ScriptEvaluationConfiguration.previousSnippets]?.let {
-            if (it.isNotEmpty()) {
-                args.add(it.toTypedArray())
-            }
+            args.add(it.toTypedArray())
         }
 
         refinedEvalConfiguration[ScriptEvaluationConfiguration.constructorArgs]?.let {