Add EnumEntries to minimal-stdlib-for-tests

This change allows to revert adding `WITH_STDLIB` directive
to tests which happened at `a9343aeb`.

Co-authored-by: Alexander Udalov <Alexander.Udalov@jetbrains.com>

compiler/testData/ir/irText/expressions/objectAsCallable.fir.kt.txt

@@ -20,8 +20,8 @@ enum class En : Enum<En> {
 
   fun valueOf(value: String): En /* Synthetic body for ENUM_VALUEOF */
 
-  val entries: EnumEntries
-    get(): EnumEntries /* Synthetic body for ENUM_ENTRIES */
+  val entries: EnumEntries<En>
+    get(): EnumEntries<En> /* Synthetic body for ENUM_ENTRIES */
 
 }
 
@@ -40,4 +40,3 @@ val test1: Int
 val test2: Int
   field = En.X.invoke(i = 42)
   get
-