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.serializer/src/org/jetbrains/kotlin/serialization/js/KotlinJavascriptSerializationUtil.kt

@@ -161,7 +161,7 @@ object KotlinJavascriptSerializationUtil {
         fqName: FqName,
         languageVersionSettings: LanguageVersionSettings,
         project: Project,
-        metadataVersion: BinaryVersion
+        metadataVersion: JsMetadataVersion
     ): ProtoBuf.PackageFragment {
         val builder = ProtoBuf.PackageFragment.newBuilder()
 

js/js.serializer/src/org/jetbrains/kotlin/serialization/js/KotlinJavascriptSerializerExtension.kt

@@ -16,11 +16,9 @@
 
 package org.jetbrains.kotlin.serialization.js
 
-import org.jetbrains.kotlin.config.LanguageFeature
 import org.jetbrains.kotlin.config.LanguageVersionSettings
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.metadata.ProtoBuf
-import org.jetbrains.kotlin.metadata.deserialization.BinaryVersion
 import org.jetbrains.kotlin.metadata.js.JsProtoBuf
 import org.jetbrains.kotlin.metadata.serialization.MutableVersionRequirementTable
 import org.jetbrains.kotlin.psi.KtFile
@@ -31,11 +29,12 @@ import org.jetbrains.kotlin.serialization.DescriptorSerializer
 import org.jetbrains.kotlin.serialization.KotlinSerializerExtensionBase
 import org.jetbrains.kotlin.serialization.deserialization.DYNAMIC_TYPE_DESERIALIZER_ID
 import org.jetbrains.kotlin.types.FlexibleType
+import org.jetbrains.kotlin.utils.JsMetadataVersion
 
 class KotlinJavascriptSerializerExtension(
     private val fileRegistry: KotlinFileRegistry,
     private val languageVersionSettings: LanguageVersionSettings,
-    override val metadataVersion: BinaryVersion
+    override val metadataVersion: JsMetadataVersion
 ) : KotlinSerializerExtensionBase(JsSerializerProtocol) {
     override val stringTable = ApproximatingStringTable()