Native: fix comparisons of LocalDate values

Author: dkhalanskyjb

core/commonTest/src/InstantTest.kt

@@ -122,6 +122,15 @@ class InstantTest {
         assertEquals(period, instant1.periodUntil(instant5, zone))
         assertEquals(period, instant5.minus(instant1, zone))
         assertEquals(26.hours, instant5.minus(instant1))
+
+        val instant6 = instant1.plus(23, DateTimeUnit.HOUR, zone)
+        checkComponents(instant6.toLocalDateTime(zone), 2019, 10, 28, 0, 59)
+        assertEquals(23.hours, instant6 - instant1)
+        assertEquals(23, instant1.until(instant6, DateTimeUnit.HOUR, zone))
+        assertEquals(23, instant6.minus(instant1, DateTimeUnit.HOUR, zone))
+        assertEquals(0, instant1.until(instant6, DateTimeUnit.DAY, zone))
+        assertEquals(0, instant6.until(instant1, DateTimeUnit.DAY, zone))
+        assertEquals(0, instant6.minus(instant1, DateTimeUnit.DAY, zone))
     }
 
     @OptIn(ExperimentalTime::class)

core/nativeMain/src/LocalDate.kt

@@ -147,7 +147,7 @@ public actual class LocalDate actual constructor(actual val year: Int, actual va
         if (m != 0) {
             return m
         }
-        return dayOfMonth.compareTo(dayOfMonth)
+        return dayOfMonth.compareTo(other.dayOfMonth)
     }
 
     // org.threeten.bp.LocalDate#resolvePreviousValid