diff --git a/libraries/stdlib/src/generated/_Ranges.kt b/libraries/stdlib/src/generated/_Ranges.kt
index 7cb1ad62e31..d4161e8870a 100644
--- a/libraries/stdlib/src/generated/_Ranges.kt
+++ b/libraries/stdlib/src/generated/_Ranges.kt
@@ -67,513 +67,513 @@ public fun Short.`-until`(to: Short): ShortRange {
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("intRangeContains")
-public operator fun Range<Int>.contains(item: Byte): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Int>.contains(value: Byte): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("intRangeContains")
-public operator fun ClosedRange<Int>.contains(item: Byte): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Int>.contains(value: Byte): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("longRangeContains")
-public operator fun Range<Long>.contains(item: Byte): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Long>.contains(value: Byte): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("longRangeContains")
-public operator fun ClosedRange<Long>.contains(item: Byte): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Long>.contains(value: Byte): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("shortRangeContains")
-public operator fun Range<Short>.contains(item: Byte): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Short>.contains(value: Byte): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("shortRangeContains")
-public operator fun ClosedRange<Short>.contains(item: Byte): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Short>.contains(value: Byte): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("doubleRangeContains")
-public operator fun Range<Double>.contains(item: Byte): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Double>.contains(value: Byte): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("doubleRangeContains")
-public operator fun ClosedRange<Double>.contains(item: Byte): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Double>.contains(value: Byte): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("floatRangeContains")
-public operator fun Range<Float>.contains(item: Byte): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Float>.contains(value: Byte): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("floatRangeContains")
-public operator fun ClosedRange<Float>.contains(item: Byte): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Float>.contains(value: Byte): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("intRangeContains")
-public operator fun Range<Int>.contains(item: Double): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Int>.contains(value: Double): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("intRangeContains")
-public operator fun ClosedRange<Int>.contains(item: Double): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Int>.contains(value: Double): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("longRangeContains")
-public operator fun Range<Long>.contains(item: Double): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Long>.contains(value: Double): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("longRangeContains")
-public operator fun ClosedRange<Long>.contains(item: Double): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Long>.contains(value: Double): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("byteRangeContains")
-public operator fun Range<Byte>.contains(item: Double): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Byte>.contains(value: Double): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("byteRangeContains")
-public operator fun ClosedRange<Byte>.contains(item: Double): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Byte>.contains(value: Double): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("shortRangeContains")
-public operator fun Range<Short>.contains(item: Double): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Short>.contains(value: Double): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("shortRangeContains")
-public operator fun ClosedRange<Short>.contains(item: Double): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Short>.contains(value: Double): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("floatRangeContains")
-public operator fun Range<Float>.contains(item: Double): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Float>.contains(value: Double): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("floatRangeContains")
-public operator fun ClosedRange<Float>.contains(item: Double): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Float>.contains(value: Double): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("intRangeContains")
-public operator fun Range<Int>.contains(item: Float): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Int>.contains(value: Float): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("intRangeContains")
-public operator fun ClosedRange<Int>.contains(item: Float): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Int>.contains(value: Float): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("longRangeContains")
-public operator fun Range<Long>.contains(item: Float): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Long>.contains(value: Float): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("longRangeContains")
-public operator fun ClosedRange<Long>.contains(item: Float): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Long>.contains(value: Float): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("byteRangeContains")
-public operator fun Range<Byte>.contains(item: Float): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Byte>.contains(value: Float): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("byteRangeContains")
-public operator fun ClosedRange<Byte>.contains(item: Float): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Byte>.contains(value: Float): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("shortRangeContains")
-public operator fun Range<Short>.contains(item: Float): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Short>.contains(value: Float): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("shortRangeContains")
-public operator fun ClosedRange<Short>.contains(item: Float): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Short>.contains(value: Float): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("doubleRangeContains")
-public operator fun Range<Double>.contains(item: Float): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Double>.contains(value: Float): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("doubleRangeContains")
-public operator fun ClosedRange<Double>.contains(item: Float): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Double>.contains(value: Float): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("longRangeContains")
-public operator fun Range<Long>.contains(item: Int): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Long>.contains(value: Int): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("longRangeContains")
-public operator fun ClosedRange<Long>.contains(item: Int): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Long>.contains(value: Int): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("byteRangeContains")
-public operator fun Range<Byte>.contains(item: Int): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Byte>.contains(value: Int): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("byteRangeContains")
-public operator fun ClosedRange<Byte>.contains(item: Int): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Byte>.contains(value: Int): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("shortRangeContains")
-public operator fun Range<Short>.contains(item: Int): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Short>.contains(value: Int): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("shortRangeContains")
-public operator fun ClosedRange<Short>.contains(item: Int): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Short>.contains(value: Int): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("doubleRangeContains")
-public operator fun Range<Double>.contains(item: Int): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Double>.contains(value: Int): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("doubleRangeContains")
-public operator fun ClosedRange<Double>.contains(item: Int): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Double>.contains(value: Int): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("floatRangeContains")
-public operator fun Range<Float>.contains(item: Int): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Float>.contains(value: Int): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("floatRangeContains")
-public operator fun ClosedRange<Float>.contains(item: Int): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Float>.contains(value: Int): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("intRangeContains")
-public operator fun Range<Int>.contains(item: Long): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Int>.contains(value: Long): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("intRangeContains")
-public operator fun ClosedRange<Int>.contains(item: Long): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Int>.contains(value: Long): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("byteRangeContains")
-public operator fun Range<Byte>.contains(item: Long): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Byte>.contains(value: Long): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("byteRangeContains")
-public operator fun ClosedRange<Byte>.contains(item: Long): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Byte>.contains(value: Long): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("shortRangeContains")
-public operator fun Range<Short>.contains(item: Long): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Short>.contains(value: Long): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("shortRangeContains")
-public operator fun ClosedRange<Short>.contains(item: Long): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Short>.contains(value: Long): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("doubleRangeContains")
-public operator fun Range<Double>.contains(item: Long): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Double>.contains(value: Long): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("doubleRangeContains")
-public operator fun ClosedRange<Double>.contains(item: Long): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Double>.contains(value: Long): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("floatRangeContains")
-public operator fun Range<Float>.contains(item: Long): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Float>.contains(value: Long): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("floatRangeContains")
-public operator fun ClosedRange<Float>.contains(item: Long): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Float>.contains(value: Long): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("intRangeContains")
-public operator fun Range<Int>.contains(item: Short): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Int>.contains(value: Short): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("intRangeContains")
-public operator fun ClosedRange<Int>.contains(item: Short): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Int>.contains(value: Short): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("longRangeContains")
-public operator fun Range<Long>.contains(item: Short): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Long>.contains(value: Short): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("longRangeContains")
-public operator fun ClosedRange<Long>.contains(item: Short): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Long>.contains(value: Short): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("byteRangeContains")
-public operator fun Range<Byte>.contains(item: Short): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Byte>.contains(value: Short): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("byteRangeContains")
-public operator fun ClosedRange<Byte>.contains(item: Short): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Byte>.contains(value: Short): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("doubleRangeContains")
-public operator fun Range<Double>.contains(item: Short): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Double>.contains(value: Short): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("doubleRangeContains")
-public operator fun ClosedRange<Double>.contains(item: Short): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Double>.contains(value: Short): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @Deprecated("Range<T> is deprecated. Use ClosedRange<T> instead.")
 @kotlin.jvm.JvmName("floatRangeContains")
-public operator fun Range<Float>.contains(item: Short): Boolean {
-    return start <= item && item <= end
+public operator fun Range<Float>.contains(value: Short): Boolean {
+    return start <= value && value <= end
 }
 
 /**
- * Checks if the specified [item] belongs to this range.
+ * Checks if the specified [value] belongs to this range.
  */
 @kotlin.jvm.JvmName("floatRangeContains")
-public operator fun ClosedRange<Float>.contains(item: Short): Boolean {
-    return start <= item && item <= endInclusive
+public operator fun ClosedRange<Float>.contains(value: Short): Boolean {
+    return start <= value && value <= endInclusive
 }
 
 /**
diff --git a/libraries/tools/kotlin-stdlib-gen/src/templates/Ranges.kt b/libraries/tools/kotlin-stdlib-gen/src/templates/Ranges.kt
index 453bc3b3e63..bf43c3247a2 100644
--- a/libraries/tools/kotlin-stdlib-gen/src/templates/Ranges.kt
+++ b/libraries/tools/kotlin-stdlib-gen/src/templates/Ranges.kt
@@ -238,7 +238,7 @@ fun ranges(): List<GenericFunction> {
     templates addAll integralPermutations.map { until(it.first, it.second) }
     templates addAll listOf(PrimitiveType.Byte, PrimitiveType.Short).permutations().map { untilDeprecated(it.first, it.second) }
 
-    fun containsDeprecated(rangeType: PrimitiveType, itemType: PrimitiveType) = f("contains(item: $itemType)") {
+    fun containsDeprecated(rangeType: PrimitiveType, itemType: PrimitiveType) = f("contains(value: $itemType)") {
         operator(true)
 
         deprecate("Range<T> is deprecated. Use ClosedRange<T> instead.")
@@ -248,11 +248,11 @@ fun ranges(): List<GenericFunction> {
         onlyPrimitives(Ranges, rangeType)
         platformName("${rangeType.name.decapitalize()}RangeContains")
         returns("Boolean")
-        doc { "Checks if the specified [item] belongs to this range." }
-        body { "return start <= item && item <= end" }
+        doc { "Checks if the specified [value] belongs to this range." }
+        body { "return start <= value && value <= end" }
     }
 
-    fun contains(rangeType: PrimitiveType, itemType: PrimitiveType) = f("contains(item: $itemType)") {
+    fun contains(rangeType: PrimitiveType, itemType: PrimitiveType) = f("contains(value: $itemType)") {
         operator(true)
 
         check(rangeType.isNumeric() == itemType.isNumeric()) { "Required rangeType and itemType both to be numeric or both not, got: $rangeType, $itemType" }
@@ -261,8 +261,8 @@ fun ranges(): List<GenericFunction> {
         customReceiver("ClosedRange<T>")
         platformName("${rangeType.name.decapitalize()}RangeContains")
         returns("Boolean")
-        doc { "Checks if the specified [item] belongs to this range." }
-        body { "return start <= item && item <= endInclusive" }
+        doc { "Checks if the specified [value] belongs to this range." }
+        body { "return start <= value && value <= endInclusive" }
     }