[SLC] introduce SimpleModifiersBox

^KT-56046

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

@@ -24,10 +24,10 @@ internal typealias LazyModifiersComputer = (modifier: String) -> Map<String, Boo
 internal class LazyModifiersBox(
     initialValue: Map<String, Boolean>,
     private val computer: LazyModifiersComputer,
-) {
+) : ModifiersBox {
     private val modifiersMapReference: AtomicReference<PersistentMap<String, Boolean>> = AtomicReference(initialValue.toPersistentHashMap())
 
-    fun hasModifier(modifier: String): Boolean {
+    override fun hasModifier(modifier: String): Boolean {
         modifiersMapReference.get()[modifier]?.let { return it }
         val newValues = computer(modifier) ?: mapOf(modifier to false)
         modifiersMapReference.updateAndGet {

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

@@ -0,0 +1,10 @@
+/*
+ * 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.light.classes.symbol.modifierLists
+
+internal sealed interface ModifiersBox {
+    fun hasModifier(modifier: String): Boolean
+}

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

@@ -0,0 +1,10 @@
+/*
+ * 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.light.classes.symbol.modifierLists
+
+internal class SimpleModifiersBox(private val modifiers: Set<String>) : ModifiersBox {
+    override fun hasModifier(modifier: String): Boolean = modifier in modifiers
+}