KT-2579 Rename Range.minus() to reversed and make it extension

#KT-2579 fixed

runtime/src/jet/ByteRange.java

@@ -93,10 +93,6 @@ public final class ByteRange implements Range<Byte>, ByteIterable {
             return new MyIterator(start, count, step);
     }
 
-    public ByteRange minus() {
-        return new ByteRange(getEnd(), -count);
-    }
-
     @Override
     public ByteIterator iterator() {
         return new MyIterator(start, count, 1);

runtime/src/jet/CharRange.java

@@ -86,10 +86,6 @@ public final class CharRange implements Range<Character>, CharIterable {
         return count < 0 ? -count : count;
     }
 
-    public CharRange minus() {
-        return new CharRange(getEnd(), -count);
-    }
-
     public CharIterator step(int step) {
         if (step < 0)
             return new MyIterator(getEnd(), -count, -step);

runtime/src/jet/DoubleRange.java

@@ -87,10 +87,6 @@ public final class DoubleRange implements Range<Double> {
         return size < 0 ? -size : size;
     }
 
-    public DoubleRange minus() {
-        return new DoubleRange(getEnd(), -size);
-    }
-
     public static DoubleRange count(int length) {
         return new DoubleRange(0, length);
     }

runtime/src/jet/FloatRange.java

@@ -83,10 +83,6 @@ public final class FloatRange implements Range<Float> {
         return size < 0 ? -size : size;
     }
 
-    public FloatRange minus() {
-        return new FloatRange(getEnd(), -size);
-    }
-
     public static FloatRange count(int length) {
         return new FloatRange(0, length);
     }

runtime/src/jet/IntRange.java

@@ -102,10 +102,6 @@ public final class IntRange implements Range<Integer>, IntIterable {
         return count < 0 ? -count : count;
     }
 
-    public IntRange minus() {
-        return new IntRange(getEnd(), -count);
-    }
-
     @Override
     public IntIterator iterator() {
         return new MyIterator(start, count, 1);

runtime/src/jet/LongRange.java

@@ -93,10 +93,6 @@ public final class LongRange implements Range<Long>, LongIterable {
         return count < 0 ? -count : count;
     }
 
-    public LongRange minus() {
-        return new LongRange(getEnd(), -count);
-    }
-
     @Override
     public LongIterator iterator() {
         return new MyIterator(start, count, 1);

runtime/src/jet/ShortRange.java

@@ -93,10 +93,6 @@ public final class ShortRange implements Range<Short>, ShortIterable {
         return count < 0 ? -count : count;
     }
 
-    public ShortRange minus() {
-        return new ShortRange(getEnd(), -count);
-    }
-
     @Override
     public ShortIterator iterator() {
         return new MyIterator(start, count, 1);