[K/N] Deprecated freezing ^KT-50541

Starting with 1.7.20 freezing is deprecated. See https://github.com/JetBrains/kotlin/blob/master/kotlin-native/NEW_MM.md#freezing-deprecation for details.

Merge-request: KT-MR-6399
Merged-by: Alexander Shabalin <Alexander.Shabalin@jetbrains.com>

libraries/stdlib/native-wasm/src/kotlin/collections/HashMap.kt

@@ -6,7 +6,9 @@
 package kotlin.collections
 
 import kotlin.native.concurrent.isFrozen
+import kotlin.native.FreezingIsDeprecated
 
+@OptIn(FreezingIsDeprecated::class)
 actual class HashMap<K, V> private constructor(
         private var keysArray: Array<K>,
         private var valuesArray: Array<V>?, // allocated only when actually used, always null in pure HashSet

libraries/stdlib/native-wasm/src/kotlin/native/FreezingIsDeprecated.kt

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2010-2022 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 kotlin.native
+
+// This is here instead of kotlin-native/runtime because some of native-wasm uses this annotation.
+/**
+ * Freezing API is deprecated since 1.7.20.
+ *
+ * See [NEW_MM.md#freezing-deprecation](https://github.com/JetBrains/kotlin/blob/master/kotlin-native/NEW_MM.md#freezing-deprecation) for details
+ */
+// Note: when changing level of deprecation here, also change
+// * `freezing` mode handling in KonanConfig.kt
+// * frontend diagnostics in ErrorsNative.kt
+@SinceKotlin("1.7")
+@RequiresOptIn(
+    message = "Freezing API is deprecated since 1.7.20. See https://github.com/JetBrains/kotlin/blob/master/kotlin-native/NEW_MM.md#freezing-deprecation for details",
+    level = RequiresOptIn.Level.WARNING,
+)
+@Target(
+    AnnotationTarget.CLASS,
+    AnnotationTarget.ANNOTATION_CLASS,
+    AnnotationTarget.PROPERTY,
+    AnnotationTarget.FIELD,
+    AnnotationTarget.LOCAL_VARIABLE,
+    AnnotationTarget.VALUE_PARAMETER,
+    AnnotationTarget.CONSTRUCTOR,
+    AnnotationTarget.FUNCTION,
+    AnnotationTarget.PROPERTY_GETTER,
+    AnnotationTarget.PROPERTY_SETTER,
+    AnnotationTarget.TYPEALIAS,
+)
+@Retention(AnnotationRetention.BINARY)
+actual annotation class FreezingIsDeprecated

libraries/stdlib/native-wasm/src/kotlin/text/regex/AbstractCharClass.kt

@@ -27,6 +27,7 @@ import kotlin.collections.associate
 import kotlin.native.concurrent.AtomicReference
 import kotlin.native.concurrent.freeze
 import kotlin.native.BitSet
+import kotlin.native.FreezingIsDeprecated
 
 /**
  * Unicode category (i.e. Ll, Lu).
@@ -48,6 +49,7 @@ internal class UnicodeCategoryScope(category: Int) : UnicodeCategory(category) {
  * This class represents character classes, i.e. sets of character either predefined or user defined.
  * Note: this class represent a token, not node, so being constructed by lexer.
  */
+@OptIn(FreezingIsDeprecated::class)
 internal abstract class AbstractCharClass : SpecialToken() {
     /**
      * Show if the class has alternative meaning: