Drop Range<T> interface and its extensions.

core/builtins/src/kotlin/Range.kt

@@ -20,45 +20,12 @@ package kotlin.ranges
  * Represents a range of values (for example, numbers or characters).
  * See the [Kotlin language documentation](http://kotlinlang.org/docs/reference/ranges.html) for more information.
  */
-@Deprecated("This range has unclear inclusiveness of end value. Use ClosedRange instead.", ReplaceWith("ClosedRange<T>"))
-public interface Range<T : Comparable<T>> {
+public interface ClosedRange<T: Comparable<T>> {
     /**
      * The minimum value in the range.
      */
     public val start: T
 
-    /**
-     * The maximum value in the range (inclusive).
-     */
-    public val end: T
-
-    /**
-     * Checks if the specified [value] belongs to the range.
-     */
-    public operator fun contains(value: T): Boolean
-
-    /**
-     * Checks if the range is empty.
-     */
-    public fun isEmpty(): Boolean = start > end
-}
-
-/**
- * Represents a range of values (for example, numbers or characters).
- * See the [Kotlin language documentation](http://kotlinlang.org/docs/reference/ranges.html) for more information.
- */
-public interface ClosedRange<T: Comparable<T>> : Range<T> {
-    /**
-     * The minimum value in the range.
-     */
-    public override val start: T
-
-    /**
-     * The maximum value in the range (inclusive).
-     */
-    @Deprecated("Use endInclusive instead.", ReplaceWith("endInclusive"))
-    public override val end: T get() = endInclusive
-
     /**
      * The maximum value in the range (inclusive).
      */
@@ -67,10 +34,10 @@ public interface ClosedRange<T: Comparable<T>> : Range<T> {
     /**
      * Checks whether the specified [value] belongs to the range.
      */
-    public override operator fun contains(value: T): Boolean = value >= start && value <= endInclusive
+    public operator fun contains(value: T): Boolean = value >= start && value <= endInclusive
 
     /**
      * Checks whether the range is empty.
      */
-    public override fun isEmpty(): Boolean = start > endInclusive
+    public fun isEmpty(): Boolean = start > endInclusive
 }