Do not store ClassDescriptor in EnumValue

Only store the ClassId of the enum class and the Name of the entry, and
resolve the needed descriptor in getType() instead, which now takes the
module instance where that descriptor should be resolved

js/js.translator/src/org/jetbrains/kotlin/js/translate/expression/WhenTranslator.kt

@@ -197,7 +197,7 @@ private constructor(private val whenExpression: KtWhenExpression, context: Trans
     ): Pair<List<EntryWithConstants>, Int> {
         return collectConstantEntries(
                 fromIndex, entries,
-                { (it.toConstantValue(expectedType) as? EnumValue)?.value?.name?.identifier },
+                { (it.toConstantValue(expectedType) as? EnumValue)?.enumEntryName?.identifier },
                 { uniqueEnumNames.add(it) },
                 { JsStringLiteral(it) }
         )