[scripting] Move earlierScripts to the frontend descriptor

^KT-20488 fixed

plugins/scripting/scripting-compiler/src/org/jetbrains/kotlin/scripting/compiler/plugin/repl/ReplCodeAnalyzer.kt

@@ -100,12 +100,20 @@ open class ReplCodeAnalyzerBase(
 
     fun reset(): List<SourceCodeByReplLine> = replState.reset()
 
-    fun analyzeReplLine(psiFile: KtFile, codeLine: ReplCodeLine): ReplLineAnalysisResult {
+    protected fun prepareForAnalyze(
+        psiFile: KtFile,
+        priority: Int
+    ) {
         topDownAnalysisContext.scripts.clear()
         trace.clearDiagnostics()
 
-        psiFile.script!!.putUserData(ScriptPriorities.PRIORITY_KEY, codeLine.no)
+        val script = psiFile.script!!
 
+        script.putUserData(ScriptPriorities.PRIORITY_KEY, priority)
+    }
+
+    fun analyzeReplLine(psiFile: KtFile, codeLine: ReplCodeLine): ReplLineAnalysisResult {
+        prepareForAnalyze(psiFile, codeLine.no)
         return doAnalyze(psiFile, emptyList(), codeLine.toSourceCode())
     }
 
@@ -115,11 +123,7 @@ open class ReplCodeAnalyzerBase(
         codeLine: SourceCode,
         priority: Int
     ): ReplLineAnalysisResult {
-        topDownAnalysisContext.scripts.clear()
-        trace.clearDiagnostics()
-
-        psiFile.script!!.putUserData(ScriptPriorities.PRIORITY_KEY, priority)
-
+        prepareForAnalyze(psiFile, priority)
         return doAnalyze(psiFile, importedScripts, codeLine.addNo(priority))
     }