Cleanup: Use concrete subclass instead of BinaryVersion when possible

Review: https://jetbrains.team/p/kt/reviews/8401

BinaryVersion is a problematic class, because it doesn't represent any
logical entity in the codebase, it's just a way to reuse common logic
for Kotlin versions. But unfortunately, BinaryVersion is used in a lot
of API definitions, which makes code hard to read because it's not
obvious which subclasses are supposed to be passed in the particular
API.

js/js.translator/src/org/jetbrains/kotlin/js/facade/K2JSTranslator.kt

@@ -243,6 +243,9 @@ class K2JSTranslator @JvmOverloads constructor(
         scope: Collection<DeclarationDescriptor>
     ): ProtoBuf.PackageFragment {
         val metadataVersion = config.configuration.get(CommonConfigurationKeys.METADATA_VERSION)
+        if (metadataVersion !is JsMetadataVersion?) {
+            error("${metadataVersion?.let { it::class }} must be either null or ${JsMetadataVersion::class.simpleName}")
+        }
         return KotlinJavascriptSerializationUtil.serializeDescriptors(
             bindingContext,
             moduleDescriptor,