Deprecate Double, Float and Comparable range implementations.

core/builtins/src/kotlin/ProgressionIterators.kt

@@ -139,6 +139,7 @@ class LongProgressionIterator(start: Long, end: Long, val increment: Long) : Lon
  * An iterator over a progression of values of type `Float`.
  * @property increment the number by which the value is incremented on each step.
  */
+@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
 class FloatProgressionIterator(start: Float, val end: Float, val increment: Float) : FloatIterator() {
     private var next = start
 
@@ -155,6 +156,7 @@ class FloatProgressionIterator(start: Float, val end: Float, val increment: Floa
  * An iterator over a progression of values of type `Double`.
  * @property increment the number by which the value is incremented on each step.
  */
+@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
 class DoubleProgressionIterator(start: Double, val end: Double, val increment: Double) : DoubleIterator() {
     private var next = start
 

core/builtins/src/kotlin/Progressions.kt

@@ -153,6 +153,8 @@ public class LongProgression(
     override fun toString(): String = if (increment > 0) "$start..$end step $increment" else "$start downTo $end step ${-increment}"
 }
 
+@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Suppress("DEPRECATION_ERROR")
 /**
  * A progression of values of type `Float`.
  */
@@ -181,6 +183,8 @@ public class FloatProgression(
     override fun toString(): String = if (increment > 0) "$start..$end step $increment" else "$start downTo $end step ${-increment}"
 }
 
+@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Suppress("DEPRECATION_ERROR")
 /**
  * A progression of values of type `Double`.
  */

core/builtins/src/kotlin/Ranges.kt

@@ -158,6 +158,8 @@ public class LongRange(override val start: Long, override val end: Long) : Range
     }
 }
 
+@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Suppress("DEPRECATION_ERROR")
 /**
  * A range of values of type `Float`.
  */
@@ -186,6 +188,8 @@ public class FloatRange(override val start: Float, override val end: Float) : Ra
     }
 }
 
+@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Suppress("DEPRECATION_ERROR")
 /**
  * A range of values of type `Double`.
  */