Fix imported script functionality in JSR-223/REPL:

- setup compilation properly to take imported scripts into account
- add compiled imported scripts into generated results
= calculate ScriptLightVirtualFile path as relative - simplifies imported scripts location

plugins/scripting/scripting-compiler/src/org/jetbrains/kotlin/scripting/compiler/plugin/impl/KJvmReplCompilerImpl.kt

@@ -140,7 +140,7 @@ class KJvmReplCompilerImpl(val hostConfiguration: ScriptingHostConfiguration) :
             KotlinCodegenFacade.generatePackage(
                 generationState,
                 snippetKtFile.script!!.containingKtFile.packageFqName,
-                setOf(snippetKtFile.script!!.containingKtFile),
+                sourceFiles,
                 CompilationErrorHandler.THROW_EXCEPTION
             )
 

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

@@ -103,7 +103,9 @@ class ReplCodeAnalyzer(environment: KotlinCoreEnvironment) {
     }
 
     private fun doAnalyze(linePsi: KtFile, importedScripts: List<KtFile>, codeLine: ReplCodeLine): ReplLineAnalysisResult {
-        scriptDeclarationFactory.setDelegateFactory(FileBasedDeclarationProviderFactory(resolveSession.storageManager, listOf(linePsi)))
+        scriptDeclarationFactory.setDelegateFactory(
+            FileBasedDeclarationProviderFactory(resolveSession.storageManager, listOf(linePsi) + importedScripts)
+        )
         replState.submitLine(linePsi, codeLine)
 
         val context = topDownAnalyzer.analyzeDeclarations(topDownAnalysisContext.topDownAnalysisMode, listOf(linePsi) + importedScripts)