Reintroduce KtLightClassForScript as a common interface between (U|S)LC

...so that UAST's conversion to KotlinScriptUClass can work for both LCs

analysis/light-classes-base/src/org/jetbrains/kotlin/asJava/classes/KtLightClassForScript.kt

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.asJava.classes
+
+import org.jetbrains.kotlin.load.java.structure.LightClassOriginKind
+import org.jetbrains.kotlin.psi.KtClassOrObject
+import org.jetbrains.kotlin.psi.KtScript
+
+interface KtLightClassForScript : KtLightClass {
+    val script: KtScript
+
+    override val kotlinOrigin: KtClassOrObject?
+        get() = null
+
+    override val originKind: LightClassOriginKind
+        get() = LightClassOriginKind.SOURCE
+}

analysis/light-classes-base/src/org/jetbrains/kotlin/asJava/classes/KtLightClassForScriptBase.kt

@@ -13,13 +13,13 @@ import com.intellij.util.IncorrectOperationException
 import org.jetbrains.annotations.NonNls
 import org.jetbrains.kotlin.asJava.elements.FakeFileForLightClass
 import org.jetbrains.kotlin.idea.KotlinLanguage
-import org.jetbrains.kotlin.load.java.structure.LightClassOriginKind
 import org.jetbrains.kotlin.name.FqName
-import org.jetbrains.kotlin.psi.KtClassOrObject
 import org.jetbrains.kotlin.psi.KtScript
 import javax.swing.Icon
 
-abstract class KtLightClassForScriptBase(val script: KtScript) : KtLightClassBase(script.manager) {
+abstract class KtLightClassForScriptBase(
+    override val script: KtScript
+) : KtLightClassForScript, KtLightClassBase(script.manager) {
     private val modifierList: PsiModifierList = LightModifierList(
         manager,
         KotlinLanguage.INSTANCE,
@@ -42,8 +42,6 @@ abstract class KtLightClassForScriptBase(val script: KtScript) : KtLightClassBas
         )
     }
 
-    override val kotlinOrigin: KtClassOrObject? get() = null
-
     val fqName: FqName get() = script.fqName
 
     override fun getModifierList() = modifierList
@@ -97,8 +95,6 @@ abstract class KtLightClassForScriptBase(val script: KtScript) : KtLightClassBas
     override fun getElementIcon(flags: Int): Icon? =
         throw UnsupportedOperationException("This should be done by KotlinIconProvider")
 
-    override val originKind: LightClassOriginKind get() = LightClassOriginKind.SOURCE
-
     override fun getLBrace(): PsiElement? = null
 
     override fun getRBrace(): PsiElement? = null

analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/classes/SymbolLightClassForScript.kt

@@ -20,15 +20,13 @@ import org.jetbrains.kotlin.light.classes.symbol.methods.SymbolLightMethodForScr
 import org.jetbrains.kotlin.light.classes.symbol.modifierLists.InitializedModifiersBox
 import org.jetbrains.kotlin.light.classes.symbol.modifierLists.SymbolLightClassModifierList
 import org.jetbrains.kotlin.light.classes.symbol.withSymbol
-import org.jetbrains.kotlin.load.java.structure.LightClassOriginKind
-import org.jetbrains.kotlin.psi.KtClassOrObject
 import org.jetbrains.kotlin.psi.KtScript
 
 internal class SymbolLightClassForScript private constructor(
-    private val script: KtScript,
+    override val script: KtScript,
     private val symbolPointer: KtSymbolPointer<KtScriptSymbol>,
     ktModule: KtModule,
-) : SymbolLightClassBase(ktModule, script.manager) {
+) : KtLightClassForScript, SymbolLightClassBase(ktModule, script.manager) {
 
     internal constructor(
         script: KtScript,
@@ -174,7 +172,4 @@ internal class SymbolLightClassForScript private constructor(
 
     override fun isInheritorDeep(baseClass: PsiClass?, classToByPass: PsiClass?): Boolean = false
 
-    override val kotlinOrigin: KtClassOrObject? = null
-
-    override val originKind: LightClassOriginKind = LightClassOriginKind.SOURCE
 }