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/modifiers/defaultModifier.txt

@@ -91,6 +91,7 @@ public final enum class Enum : kotlin.Enum<Enum> {
     }
 
     // Static members
+    public final /*synthesized*/ val entries: kotlin.enums.EnumEntries<Enum>
     public final /*synthesized*/ fun valueOf(/*0*/ value: kotlin.String): Enum
     public final /*synthesized*/ fun values(): kotlin.Array<Enum>
 }