Implement coerce extension functions for unsigned types

libraries/stdlib/samples/test/samples/comparisons/comparableOps.kt

@@ -28,6 +28,12 @@ class ComparableOps {
         assertPrints(10.coerceAtLeast(20), "20")
     }
 
+    @Sample
+    fun coerceAtLeastUnsigned() {
+        assertPrints(10u.coerceAtLeast(5u), "10")
+        assertPrints(10u.coerceAtLeast(20u), "20")
+    }
+
     @Sample
     fun coerceAtLeastComparable() {
         assertPrints(DayOfWeek.WEDNESDAY.coerceAtLeast(DayOfWeek.MONDAY), "WEDNESDAY")
@@ -40,6 +46,11 @@ class ComparableOps {
         assertPrints(10.coerceAtMost(20), "10")
     }
 
+    @Sample
+    fun coerceAtMostUnsigned() {
+        assertPrints(10u.coerceAtMost(5u), "5")
+        assertPrints(10u.coerceAtMost(20u), "10")
+    }
 
     @Sample
     fun coerceAtMostComparable() {
@@ -58,6 +69,17 @@ class ComparableOps {
         }
     }
 
+    @Sample
+    fun coerceInUnsigned() {
+        assertPrints(10u.coerceIn(1u, 100u), "10")
+        assertPrints(10u.coerceIn(1u..100u), "10")
+        assertPrints(0u.coerceIn(1u, 100u), "1")
+        assertPrints(500u.coerceIn(1u, 100u), "100")
+        assertFailsWith<IllegalArgumentException> {
+            10u.coerceIn(100u, 0u)
+        }
+    }
+
     @Sample
     fun coerceInComparable() {
         val workingDays = DayOfWeek.MONDAY..DayOfWeek.FRIDAY