Move toString() from primitive ranges to Range

The same can't be done with progressions, because its toString() checks if an
increment is greater than zero, but Progression.increment is of type Number,
which is not Comparable<Int>

generators/src/org/jetbrains/jet/generators/runtime/ranges.kt

@@ -71,8 +71,6 @@ class GenerateRanges(val out: PrintWriter) {
 
     fun hashCode()$hashCode
 
-    fun toString() = "${"\$start..\$end"}"
-
     class object {
         public val EMPTY: $range = $range($emptyBounds)
     }

libraries/stdlib/src/kotlin/Ranges.kt

@@ -7,10 +7,6 @@ public data class ComparableRange<T: Comparable<T>> (
     public override fun contains(item: T): Boolean {
         return start <= item && item <= end
     }
-
-    public fun toString(): String {
-        return "$start..$end"
-    }
 }
 
 public fun <T: Comparable<T>> T.rangeTo(that: T): ComparableRange<T> {

runtime/kt/Range.kt

@@ -22,4 +22,6 @@ public trait Range<in T : Comparable<T>> {
     public val end: T
 
     public fun contains(item: T): Boolean
+
+    public fun toString(): String = "$start..$end"
 }

runtime/kt/Ranges.kt

@@ -15,8 +15,6 @@ public class ByteRange(public override val start: Byte, public override val end:
 
     fun hashCode() = 31 * start.toInt() + end
 
-    fun toString() = "$start..$end"
-
     class object {
         public val EMPTY: ByteRange = ByteRange(1, 0)
     }
@@ -35,8 +33,6 @@ public class CharRange(public override val start: Char, public override val end:
 
     fun hashCode() = 31 * start.toInt() + end
 
-    fun toString() = "$start..$end"
-
     class object {
         public val EMPTY: CharRange = CharRange(1.toChar(), 0.toChar())
     }
@@ -55,8 +51,6 @@ public class ShortRange(public override val start: Short, public override val en
 
     fun hashCode() = 31 * start.toInt() + end
 
-    fun toString() = "$start..$end"
-
     class object {
         public val EMPTY: ShortRange = ShortRange(1, 0)
     }
@@ -75,8 +69,6 @@ public class IntRange(public override val start: Int, public override val end: I
 
     fun hashCode() = 31 * start + end
 
-    fun toString() = "$start..$end"
-
     class object {
         public val EMPTY: IntRange = IntRange(1, 0)
     }
@@ -95,8 +87,6 @@ public class LongRange(public override val start: Long, public override val end:
 
     fun hashCode() = (31 * (start xor (start ushr 32)) + (end xor (end ushr 32))).toInt()
 
-    fun toString() = "$start..$end"
-
     class object {
         public val EMPTY: LongRange = LongRange(1, 0)
     }
@@ -115,8 +105,6 @@ public class FloatRange(public override val start: Float, public override val en
 
     fun hashCode() = 31 * java.lang.Float.floatToIntBits(start) + java.lang.Float.floatToIntBits(end)
 
-    fun toString() = "$start..$end"
-
     class object {
         public val EMPTY: FloatRange = FloatRange(1.0f, 0.0f)
     }
@@ -140,8 +128,6 @@ public class DoubleRange(public override val start: Double, public override val
         return (31 * result + (temp xor (temp ushr 32))).toInt()
     }
 
-    fun toString() = "$start..$end"
-
     class object {
         public val EMPTY: DoubleRange = DoubleRange(1.0, 0.0)
     }