Fix a test

Author: dkhalanskyjb

core/tzfile/test/TimeZoneRulesTest.kt

@@ -25,7 +25,10 @@ class TimeZoneRulesTest {
         assertTrue(infoAtDstStart is OffsetInfo.Gap, "Expected Gap, got $infoAtDstStart")
         val dstEndTime = LocalDateTime(2040, 10, 28, 3, 0)
         val infoAtDstEnd = rules.infoAtDatetime(dstEndTime)
-        assertTrue(infoAtDstEnd is OffsetInfo.Overlap, "Expected Overlap, got $infoAtDstEnd")
+        assertTrue(infoAtDstEnd is OffsetInfo.Regular, "Expected Regular, got $infoAtDstEnd")
+        val timeBeforeDstEnd = LocalDateTime(2040, 10, 28, 2, 59, 59, 999_999_999)
+        val infoBeforeDstEnd = rules.infoAtDatetime(timeBeforeDstEnd)
+        assertTrue(infoAtDstEnd is OffsetInfo.Overlap, "Expected Overlap, got $infoBeforeDstEnd")
     }
 
     @Test