KT-53154 extract implementation of enumEntries into an expect/actual internal helper function

It's required, so it can be implemented in different backends
at a different pace and in a different manner

libraries/stdlib/wasm/src/kotlin/enums/EnumEntriesWasm.kt

@@ -0,0 +1,17 @@
+/*
+ * 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 kotlin.enums
+
+@SinceKotlin("1.9")
+@ExperimentalStdlibApi
+@PublishedApi
+internal actual inline fun <reified T : Enum<T>> enumEntriesIntrinsic(): EnumEntries<T> {
+    /*
+     * Implementation note: this body will be replaced with `throw NotImplementedException()` the moment
+     * all backends starts intrinsifying this call.
+     */
+    return enumEntries(enumValues<T>())
+}