Provide until function to construct integer ranges with an end being excluded from range.

#KT-4665 Fixed

libraries/stdlib/test/language/RangeTest.kt

@@ -20,6 +20,12 @@ public class RangeTest {
         assertFalse(9000 in range)
         
         assertFalse(range.isEmpty())
+
+        val openRange = 1 until 10
+        assertTrue(9 in openRange)
+        assertFalse(10 in openRange)
+
+        assertTrue(fails { 1 until Int.MIN_VALUE } is IllegalArgumentException)
     }
 
     test fun byteRange() {
@@ -38,6 +44,13 @@ public class RangeTest {
         assertFalse(111.toByte() in range)
         
         assertFalse(range.isEmpty())
+
+        val openRange = 1.toByte() until 10.toByte()
+        assertTrue(9.toByte() in openRange)
+        assertFalse(10.toByte() in openRange)
+
+        assertTrue(fails { 0.toByte() until Byte.MIN_VALUE } is IllegalArgumentException)
+
     }
 
     test fun shortRange() {
@@ -56,6 +69,12 @@ public class RangeTest {
         assertFalse(239.toShort() in range)
         
         assertFalse(range.isEmpty())
+
+        val openRange = 1.toShort() until 10.toShort()
+        assertTrue(9.toShort() in openRange)
+        assertFalse(10.toShort() in openRange)
+
+        assertTrue(fails { 0.toShort() until Short.MIN_VALUE } is IllegalArgumentException)
     }
 
     test fun longRange() {
@@ -74,6 +93,13 @@ public class RangeTest {
         assertFalse(10000000L in range)
         
         assertFalse(range.isEmpty())
+
+        val openRange = 1L until 10L
+        assertTrue(9L in openRange)
+        assertFalse(10L in openRange)
+
+        assertTrue(fails { 0L until Long.MIN_VALUE } is IllegalArgumentException)
+
     }
 
     test fun charRange() {
@@ -92,6 +118,12 @@ public class RangeTest {
         assertFalse('\u1000' in range)
         
         assertFalse(range.isEmpty())
+
+        val openRange = 'A' until 'Z'
+        assertTrue('Y' in openRange)
+        assertFalse('Z' in openRange)
+
+        assertTrue(fails { 'A' until '\u0000' } is IllegalArgumentException)
     }
 
     test fun doubleRange() {