Filter only valid roots in KotlinScriptDependenciesClassFinder

ClassFinder should return only valid roots,
but in allScriptsDependenciesClassFiles may contain old roots
because they are persistently saved in the storage.
This may cause exception after IDE restart

idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/KotlinScriptDependenciesClassFinder.kt

@@ -20,7 +20,7 @@ class KotlinScriptDependenciesClassFinder(
     private val project: Project
 ) : NonClasspathClassFinder(project), KotlinSafeClassFinder {
     override fun calcClassRoots(): List<VirtualFile> = ScriptConfigurationManager.getInstance(project)
-        .getAllScriptsDependenciesClassFiles().toList()
+        .getAllScriptsDependenciesClassFiles().filter { it.isValid }.toList()
 
     override fun findClass(qualifiedName: String, scope: GlobalSearchScope): PsiClass? {
         tailrec fun findClassInner(parentQualifier: String, inners: List<String> = emptyList()): PsiClass? {