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/diagnostics/tests/ReserveYield2.txt

@@ -39,6 +39,7 @@ package p3 {
         public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
 
         // Static members
+        public final /*synthesized*/ val entries: kotlin.enums.EnumEntries<p3.yield>
         public final /*synthesized*/ fun valueOf(/*0*/ value: kotlin.String): p3.yield
         public final /*synthesized*/ fun values(): kotlin.Array<p3.yield>
     }