diff --git a/libraries/stdlib/src/generated/_Arrays.kt b/libraries/stdlib/src/generated/_Arrays.kt
index 9bc85a82d71..d9f5497395b 100644
--- a/libraries/stdlib/src/generated/_Arrays.kt
+++ b/libraries/stdlib/src/generated/_Arrays.kt
@@ -5413,6 +5413,366 @@ public fun Array<out Short>.toShortArray(): ShortArray {
     return result
 }
 
+/**
+ * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
+ * If any of two pairs would have the same key the last one gets added to the map.
+ */
+public inline fun <T, K, V> Array<out T>.associate(transform: (T) -> Pair<K, V>): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result += transform(element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
+ * If any of two pairs would have the same key the last one gets added to the map.
+ */
+public inline fun <K, V> BooleanArray.associate(transform: (Boolean) -> Pair<K, V>): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result += transform(element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
+ * If any of two pairs would have the same key the last one gets added to the map.
+ */
+public inline fun <K, V> ByteArray.associate(transform: (Byte) -> Pair<K, V>): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result += transform(element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
+ * If any of two pairs would have the same key the last one gets added to the map.
+ */
+public inline fun <K, V> CharArray.associate(transform: (Char) -> Pair<K, V>): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result += transform(element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
+ * If any of two pairs would have the same key the last one gets added to the map.
+ */
+public inline fun <K, V> DoubleArray.associate(transform: (Double) -> Pair<K, V>): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result += transform(element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
+ * If any of two pairs would have the same key the last one gets added to the map.
+ */
+public inline fun <K, V> FloatArray.associate(transform: (Float) -> Pair<K, V>): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result += transform(element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
+ * If any of two pairs would have the same key the last one gets added to the map.
+ */
+public inline fun <K, V> IntArray.associate(transform: (Int) -> Pair<K, V>): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result += transform(element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
+ * If any of two pairs would have the same key the last one gets added to the map.
+ */
+public inline fun <K, V> LongArray.associate(transform: (Long) -> Pair<K, V>): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result += transform(element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
+ * If any of two pairs would have the same key the last one gets added to the map.
+ */
+public inline fun <K, V> ShortArray.associate(transform: (Short) -> Pair<K, V>): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result += transform(element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the elements from the given array indexed by the key
+ * returned from [keySelector] function applied to each element.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <T, K> Array<out T>.associateBy(keySelector: (T) -> K): Map<K, T> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, T>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the elements from the given array indexed by the key
+ * returned from [keySelector] function applied to each element.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K> BooleanArray.associateBy(keySelector: (Boolean) -> K): Map<K, Boolean> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, Boolean>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the elements from the given array indexed by the key
+ * returned from [keySelector] function applied to each element.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K> ByteArray.associateBy(keySelector: (Byte) -> K): Map<K, Byte> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, Byte>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the elements from the given array indexed by the key
+ * returned from [keySelector] function applied to each element.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K> CharArray.associateBy(keySelector: (Char) -> K): Map<K, Char> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, Char>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the elements from the given array indexed by the key
+ * returned from [keySelector] function applied to each element.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K> DoubleArray.associateBy(keySelector: (Double) -> K): Map<K, Double> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, Double>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the elements from the given array indexed by the key
+ * returned from [keySelector] function applied to each element.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K> FloatArray.associateBy(keySelector: (Float) -> K): Map<K, Float> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, Float>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the elements from the given array indexed by the key
+ * returned from [keySelector] function applied to each element.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K> IntArray.associateBy(keySelector: (Int) -> K): Map<K, Int> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, Int>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the elements from the given array indexed by the key
+ * returned from [keySelector] function applied to each element.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K> LongArray.associateBy(keySelector: (Long) -> K): Map<K, Long> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, Long>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the elements from the given array indexed by the key
+ * returned from [keySelector] function applied to each element.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K> ShortArray.associateBy(keySelector: (Short) -> K): Map<K, Short> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, Short>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the values provided by [valueTransform] and indexed by [keySelector] functions applied to elements of the given array.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <T, K, V> Array<out T>.associateBy(keySelector: (T) -> K, valueTransform: (T) -> V): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), valueTransform(element))
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the values provided by [valueTransform] and indexed by [keySelector] functions applied to elements of the given array.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K, V> BooleanArray.associateBy(keySelector: (Boolean) -> K, valueTransform: (Boolean) -> V): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), valueTransform(element))
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the values provided by [valueTransform] and indexed by [keySelector] functions applied to elements of the given array.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K, V> ByteArray.associateBy(keySelector: (Byte) -> K, valueTransform: (Byte) -> V): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), valueTransform(element))
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the values provided by [valueTransform] and indexed by [keySelector] functions applied to elements of the given array.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K, V> CharArray.associateBy(keySelector: (Char) -> K, valueTransform: (Char) -> V): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), valueTransform(element))
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the values provided by [valueTransform] and indexed by [keySelector] functions applied to elements of the given array.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K, V> DoubleArray.associateBy(keySelector: (Double) -> K, valueTransform: (Double) -> V): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), valueTransform(element))
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the values provided by [valueTransform] and indexed by [keySelector] functions applied to elements of the given array.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K, V> FloatArray.associateBy(keySelector: (Float) -> K, valueTransform: (Float) -> V): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), valueTransform(element))
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the values provided by [valueTransform] and indexed by [keySelector] functions applied to elements of the given array.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K, V> IntArray.associateBy(keySelector: (Int) -> K, valueTransform: (Int) -> V): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), valueTransform(element))
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the values provided by [valueTransform] and indexed by [keySelector] functions applied to elements of the given array.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K, V> LongArray.associateBy(keySelector: (Long) -> K, valueTransform: (Long) -> V): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), valueTransform(element))
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the values provided by [valueTransform] and indexed by [keySelector] functions applied to elements of the given array.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K, V> ShortArray.associateBy(keySelector: (Short) -> K, valueTransform: (Short) -> V): Map<K, V> {
+    val capacity = (size/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), valueTransform(element))
+    }
+    return result
+}
+
 /**
  * Returns an [ArrayList] of all elements.
  */
@@ -5712,450 +6072,225 @@ public fun ShortArray.toList(): List<Short> {
  * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
  * If any two elements would have the same key returned by [selector] the last one gets added to the map.
  */
-@Deprecated("Use toMapBy instead.", ReplaceWith("toMapBy(selector, transform)"))
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <T, K, V> Array<out T>.toMap(selector: (T) -> K, transform: (T) -> V): Map<K, V> {
-    return toMapBy(selector, transform)
+    return associateBy(selector, transform)
 }
 
 /**
  * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
  * If any two elements would have the same key returned by [selector] the last one gets added to the map.
  */
-@Deprecated("Use toMapBy instead.", ReplaceWith("toMapBy(selector, transform)"))
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> BooleanArray.toMap(selector: (Boolean) -> K, transform: (Boolean) -> V): Map<K, V> {
-    return toMapBy(selector, transform)
+    return associateBy(selector, transform)
 }
 
 /**
  * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
  * If any two elements would have the same key returned by [selector] the last one gets added to the map.
  */
-@Deprecated("Use toMapBy instead.", ReplaceWith("toMapBy(selector, transform)"))
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> ByteArray.toMap(selector: (Byte) -> K, transform: (Byte) -> V): Map<K, V> {
-    return toMapBy(selector, transform)
+    return associateBy(selector, transform)
 }
 
 /**
  * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
  * If any two elements would have the same key returned by [selector] the last one gets added to the map.
  */
-@Deprecated("Use toMapBy instead.", ReplaceWith("toMapBy(selector, transform)"))
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> CharArray.toMap(selector: (Char) -> K, transform: (Char) -> V): Map<K, V> {
-    return toMapBy(selector, transform)
+    return associateBy(selector, transform)
 }
 
 /**
  * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
  * If any two elements would have the same key returned by [selector] the last one gets added to the map.
  */
-@Deprecated("Use toMapBy instead.", ReplaceWith("toMapBy(selector, transform)"))
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> DoubleArray.toMap(selector: (Double) -> K, transform: (Double) -> V): Map<K, V> {
-    return toMapBy(selector, transform)
+    return associateBy(selector, transform)
 }
 
 /**
  * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
  * If any two elements would have the same key returned by [selector] the last one gets added to the map.
  */
-@Deprecated("Use toMapBy instead.", ReplaceWith("toMapBy(selector, transform)"))
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> FloatArray.toMap(selector: (Float) -> K, transform: (Float) -> V): Map<K, V> {
-    return toMapBy(selector, transform)
+    return associateBy(selector, transform)
 }
 
 /**
  * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
  * If any two elements would have the same key returned by [selector] the last one gets added to the map.
  */
-@Deprecated("Use toMapBy instead.", ReplaceWith("toMapBy(selector, transform)"))
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> IntArray.toMap(selector: (Int) -> K, transform: (Int) -> V): Map<K, V> {
-    return toMapBy(selector, transform)
+    return associateBy(selector, transform)
 }
 
 /**
  * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
  * If any two elements would have the same key returned by [selector] the last one gets added to the map.
  */
-@Deprecated("Use toMapBy instead.", ReplaceWith("toMapBy(selector, transform)"))
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> LongArray.toMap(selector: (Long) -> K, transform: (Long) -> V): Map<K, V> {
-    return toMapBy(selector, transform)
+    return associateBy(selector, transform)
 }
 
 /**
  * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
  * If any two elements would have the same key returned by [selector] the last one gets added to the map.
  */
-@Deprecated("Use toMapBy instead.", ReplaceWith("toMapBy(selector, transform)"))
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> ShortArray.toMap(selector: (Short) -> K, transform: (Short) -> V): Map<K, V> {
-    return toMapBy(selector, transform)
+    return associateBy(selector, transform)
 }
 
-/**
- * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
- * If any of two pairs would have the same key the last one gets added to the map.
- */
+@Deprecated("Use associate instead.", ReplaceWith("associate(transform)"))
 @kotlin.jvm.JvmName("toMapOfPairs")
 public inline fun <T, K, V> Array<out T>.toMap(transform: (T) -> Pair<K, V>): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result += transform(element)
-    }
-    return result
+    return associate(transform)
 }
 
-/**
- * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
- * If any of two pairs would have the same key the last one gets added to the map.
- */
+@Deprecated("Use associate instead.", ReplaceWith("associate(transform)"))
 @kotlin.jvm.JvmName("toMapOfPairs")
 public inline fun <K, V> BooleanArray.toMap(transform: (Boolean) -> Pair<K, V>): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result += transform(element)
-    }
-    return result
+    return associate(transform)
 }
 
-/**
- * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
- * If any of two pairs would have the same key the last one gets added to the map.
- */
+@Deprecated("Use associate instead.", ReplaceWith("associate(transform)"))
 @kotlin.jvm.JvmName("toMapOfPairs")
 public inline fun <K, V> ByteArray.toMap(transform: (Byte) -> Pair<K, V>): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result += transform(element)
-    }
-    return result
+    return associate(transform)
 }
 
-/**
- * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
- * If any of two pairs would have the same key the last one gets added to the map.
- */
+@Deprecated("Use associate instead.", ReplaceWith("associate(transform)"))
 @kotlin.jvm.JvmName("toMapOfPairs")
 public inline fun <K, V> CharArray.toMap(transform: (Char) -> Pair<K, V>): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result += transform(element)
-    }
-    return result
+    return associate(transform)
 }
 
-/**
- * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
- * If any of two pairs would have the same key the last one gets added to the map.
- */
+@Deprecated("Use associate instead.", ReplaceWith("associate(transform)"))
 @kotlin.jvm.JvmName("toMapOfPairs")
 public inline fun <K, V> DoubleArray.toMap(transform: (Double) -> Pair<K, V>): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result += transform(element)
-    }
-    return result
+    return associate(transform)
 }
 
-/**
- * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
- * If any of two pairs would have the same key the last one gets added to the map.
- */
+@Deprecated("Use associate instead.", ReplaceWith("associate(transform)"))
 @kotlin.jvm.JvmName("toMapOfPairs")
 public inline fun <K, V> FloatArray.toMap(transform: (Float) -> Pair<K, V>): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result += transform(element)
-    }
-    return result
+    return associate(transform)
 }
 
-/**
- * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
- * If any of two pairs would have the same key the last one gets added to the map.
- */
+@Deprecated("Use associate instead.", ReplaceWith("associate(transform)"))
 @kotlin.jvm.JvmName("toMapOfPairs")
 public inline fun <K, V> IntArray.toMap(transform: (Int) -> Pair<K, V>): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result += transform(element)
-    }
-    return result
+    return associate(transform)
 }
 
-/**
- * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
- * If any of two pairs would have the same key the last one gets added to the map.
- */
+@Deprecated("Use associate instead.", ReplaceWith("associate(transform)"))
 @kotlin.jvm.JvmName("toMapOfPairs")
 public inline fun <K, V> LongArray.toMap(transform: (Long) -> Pair<K, V>): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result += transform(element)
-    }
-    return result
+    return associate(transform)
 }
 
-/**
- * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given array.
- * If any of two pairs would have the same key the last one gets added to the map.
- */
+@Deprecated("Use associate instead.", ReplaceWith("associate(transform)"))
 @kotlin.jvm.JvmName("toMapOfPairs")
 public inline fun <K, V> ShortArray.toMap(transform: (Short) -> Pair<K, V>): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result += transform(element)
-    }
-    return result
+    return associate(transform)
 }
 
-/**
- * Returns a [Map] containing the elements from the given array indexed by the key
- * returned from [selector] function applied to each element.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector)"))
 public inline fun <T, K> Array<out T>.toMapBy(selector: (T) -> K): Map<K, T> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, T>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), element)
-    }
-    return result
+    return associateBy(selector)
 }
 
-/**
- * Returns a [Map] containing the elements from the given array indexed by the key
- * returned from [selector] function applied to each element.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector)"))
 public inline fun <K> BooleanArray.toMapBy(selector: (Boolean) -> K): Map<K, Boolean> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, Boolean>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), element)
-    }
-    return result
+    return associateBy(selector)
 }
 
-/**
- * Returns a [Map] containing the elements from the given array indexed by the key
- * returned from [selector] function applied to each element.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector)"))
 public inline fun <K> ByteArray.toMapBy(selector: (Byte) -> K): Map<K, Byte> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, Byte>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), element)
-    }
-    return result
+    return associateBy(selector)
 }
 
-/**
- * Returns a [Map] containing the elements from the given array indexed by the key
- * returned from [selector] function applied to each element.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector)"))
 public inline fun <K> CharArray.toMapBy(selector: (Char) -> K): Map<K, Char> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, Char>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), element)
-    }
-    return result
+    return associateBy(selector)
 }
 
-/**
- * Returns a [Map] containing the elements from the given array indexed by the key
- * returned from [selector] function applied to each element.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector)"))
 public inline fun <K> DoubleArray.toMapBy(selector: (Double) -> K): Map<K, Double> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, Double>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), element)
-    }
-    return result
+    return associateBy(selector)
 }
 
-/**
- * Returns a [Map] containing the elements from the given array indexed by the key
- * returned from [selector] function applied to each element.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector)"))
 public inline fun <K> FloatArray.toMapBy(selector: (Float) -> K): Map<K, Float> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, Float>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), element)
-    }
-    return result
+    return associateBy(selector)
 }
 
-/**
- * Returns a [Map] containing the elements from the given array indexed by the key
- * returned from [selector] function applied to each element.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector)"))
 public inline fun <K> IntArray.toMapBy(selector: (Int) -> K): Map<K, Int> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, Int>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), element)
-    }
-    return result
+    return associateBy(selector)
 }
 
-/**
- * Returns a [Map] containing the elements from the given array indexed by the key
- * returned from [selector] function applied to each element.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector)"))
 public inline fun <K> LongArray.toMapBy(selector: (Long) -> K): Map<K, Long> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, Long>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), element)
-    }
-    return result
+    return associateBy(selector)
 }
 
-/**
- * Returns a [Map] containing the elements from the given array indexed by the key
- * returned from [selector] function applied to each element.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector)"))
 public inline fun <K> ShortArray.toMapBy(selector: (Short) -> K): Map<K, Short> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, Short>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), element)
-    }
-    return result
+    return associateBy(selector)
 }
 
-/**
- * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <T, K, V> Array<out T>.toMapBy(selector: (T) -> K, transform: (T) -> V): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), transform(element))
-    }
-    return result
+    return associateBy(selector, transform)
 }
 
-/**
- * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> BooleanArray.toMapBy(selector: (Boolean) -> K, transform: (Boolean) -> V): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), transform(element))
-    }
-    return result
+    return associateBy(selector, transform)
 }
 
-/**
- * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> ByteArray.toMapBy(selector: (Byte) -> K, transform: (Byte) -> V): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), transform(element))
-    }
-    return result
+    return associateBy(selector, transform)
 }
 
-/**
- * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> CharArray.toMapBy(selector: (Char) -> K, transform: (Char) -> V): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), transform(element))
-    }
-    return result
+    return associateBy(selector, transform)
 }
 
-/**
- * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> DoubleArray.toMapBy(selector: (Double) -> K, transform: (Double) -> V): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), transform(element))
-    }
-    return result
+    return associateBy(selector, transform)
 }
 
-/**
- * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> FloatArray.toMapBy(selector: (Float) -> K, transform: (Float) -> V): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), transform(element))
-    }
-    return result
+    return associateBy(selector, transform)
 }
 
-/**
- * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> IntArray.toMapBy(selector: (Int) -> K, transform: (Int) -> V): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), transform(element))
-    }
-    return result
+    return associateBy(selector, transform)
 }
 
-/**
- * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> LongArray.toMapBy(selector: (Long) -> K, transform: (Long) -> V): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), transform(element))
-    }
-    return result
+    return associateBy(selector, transform)
 }
 
-/**
- * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given array.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> ShortArray.toMapBy(selector: (Short) -> K, transform: (Short) -> V): Map<K, V> {
-    val capacity = (size/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), transform(element))
-    }
-    return result
+    return associateBy(selector, transform)
 }
 
 /**
diff --git a/libraries/stdlib/src/generated/_Collections.kt b/libraries/stdlib/src/generated/_Collections.kt
index f34cf90a1ee..f148279e9f1 100644
--- a/libraries/stdlib/src/generated/_Collections.kt
+++ b/libraries/stdlib/src/generated/_Collections.kt
@@ -913,6 +913,46 @@ public fun Collection<Short>.toShortArray(): ShortArray {
     return result
 }
 
+/**
+ * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given collection.
+ * If any of two pairs would have the same key the last one gets added to the map.
+ */
+public inline fun <T, K, V> Iterable<T>.associate(transform: (T) -> Pair<K, V>): Map<K, V> {
+    val capacity = (collectionSizeOrDefault(10)/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result += transform(element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the elements from the given collection indexed by the key
+ * returned from [keySelector] function applied to each element.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <T, K> Iterable<T>.associateBy(keySelector: (T) -> K): Map<K, T> {
+    val capacity = (collectionSizeOrDefault(10)/.75f) + 1
+    val result = LinkedHashMap<K, T>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the values provided by [valueTransform] and indexed by [keySelector] functions applied to elements of the given collection.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <T, K, V> Iterable<T>.associateBy(keySelector: (T) -> K, valueTransform: (T) -> V): Map<K, V> {
+    val capacity = (collectionSizeOrDefault(10)/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), valueTransform(element))
+    }
+    return result
+}
+
 /**
  * Returns an [ArrayList] of all elements.
  */
@@ -957,50 +997,25 @@ public fun <T> Iterable<T>.toList(): List<T> {
  * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given collection.
  * If any two elements would have the same key returned by [selector] the last one gets added to the map.
  */
-@Deprecated("Use toMapBy instead.", ReplaceWith("toMapBy(selector, transform)"))
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <T, K, V> Iterable<T>.toMap(selector: (T) -> K, transform: (T) -> V): Map<K, V> {
-    return toMapBy(selector, transform)
+    return associateBy(selector, transform)
 }
 
-/**
- * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given collection.
- * If any of two pairs would have the same key the last one gets added to the map.
- */
+@Deprecated("Use associate instead.", ReplaceWith("associate(transform)"))
 @kotlin.jvm.JvmName("toMapOfPairs")
 public inline fun <T, K, V> Iterable<T>.toMap(transform: (T) -> Pair<K, V>): Map<K, V> {
-    val capacity = (collectionSizeOrDefault(10)/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result += transform(element)
-    }
-    return result
+    return associate(transform)
 }
 
-/**
- * Returns a [Map] containing the elements from the given collection indexed by the key
- * returned from [selector] function applied to each element.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector)"))
 public inline fun <T, K> Iterable<T>.toMapBy(selector: (T) -> K): Map<K, T> {
-    val capacity = (collectionSizeOrDefault(10)/.75f) + 1
-    val result = LinkedHashMap<K, T>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), element)
-    }
-    return result
+    return associateBy(selector)
 }
 
-/**
- * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given collection.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <T, K, V> Iterable<T>.toMapBy(selector: (T) -> K, transform: (T) -> V): Map<K, V> {
-    val capacity = (collectionSizeOrDefault(10)/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), transform(element))
-    }
-    return result
+    return associateBy(selector, transform)
 }
 
 /**
diff --git a/libraries/stdlib/src/generated/_Sequences.kt b/libraries/stdlib/src/generated/_Sequences.kt
index dd2586af528..847f51b6f6f 100644
--- a/libraries/stdlib/src/generated/_Sequences.kt
+++ b/libraries/stdlib/src/generated/_Sequences.kt
@@ -422,6 +422,43 @@ public fun <T> Sequence<T>.sortedWith(comparator: Comparator<in T>): Sequence<T>
     }
 }
 
+/**
+ * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given sequence.
+ * If any of two pairs would have the same key the last one gets added to the map.
+ */
+public inline fun <T, K, V> Sequence<T>.associate(transform: (T) -> Pair<K, V>): Map<K, V> {
+    val result = LinkedHashMap<K, V>()
+    for (element in this) {
+        result += transform(element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the elements from the given sequence indexed by the key
+ * returned from [keySelector] function applied to each element.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <T, K> Sequence<T>.associateBy(keySelector: (T) -> K): Map<K, T> {
+    val result = LinkedHashMap<K, T>()
+    for (element in this) {
+        result.put(keySelector(element), element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the values provided by [valueTransform] and indexed by [keySelector] functions applied to elements of the given sequence.
+ * If any two elements would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <T, K, V> Sequence<T>.associateBy(keySelector: (T) -> K, valueTransform: (T) -> V): Map<K, V> {
+    val result = LinkedHashMap<K, V>()
+    for (element in this) {
+        result.put(keySelector(element), valueTransform(element))
+    }
+    return result
+}
+
 /**
  * Returns an [ArrayList] of all elements.
  */
@@ -457,47 +494,25 @@ public fun <T> Sequence<T>.toList(): List<T> {
  * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given sequence.
  * If any two elements would have the same key returned by [selector] the last one gets added to the map.
  */
-@Deprecated("Use toMapBy instead.", ReplaceWith("toMapBy(selector, transform)"))
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <T, K, V> Sequence<T>.toMap(selector: (T) -> K, transform: (T) -> V): Map<K, V> {
-    return toMapBy(selector, transform)
+    return associateBy(selector, transform)
 }
 
-/**
- * Returns a [Map] containing key-value pairs provided by [transform] function applied to elements of the given sequence.
- * If any of two pairs would have the same key the last one gets added to the map.
- */
+@Deprecated("Use associate instead.", ReplaceWith("associate(transform)"))
 @kotlin.jvm.JvmName("toMapOfPairs")
 public inline fun <T, K, V> Sequence<T>.toMap(transform: (T) -> Pair<K, V>): Map<K, V> {
-    val result = LinkedHashMap<K, V>()
-    for (element in this) {
-        result += transform(element)
-    }
-    return result
+    return associate(transform)
 }
 
-/**
- * Returns a [Map] containing the elements from the given sequence indexed by the key
- * returned from [selector] function applied to each element.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector)"))
 public inline fun <T, K> Sequence<T>.toMapBy(selector: (T) -> K): Map<K, T> {
-    val result = LinkedHashMap<K, T>()
-    for (element in this) {
-        result.put(selector(element), element)
-    }
-    return result
+    return associateBy(selector)
 }
 
-/**
- * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to elements of the given sequence.
- * If any two elements would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <T, K, V> Sequence<T>.toMapBy(selector: (T) -> K, transform: (T) -> V): Map<K, V> {
-    val result = LinkedHashMap<K, V>()
-    for (element in this) {
-        result.put(selector(element), transform(element))
-    }
-    return result
+    return associateBy(selector, transform)
 }
 
 /**
diff --git a/libraries/stdlib/src/generated/_Strings.kt b/libraries/stdlib/src/generated/_Strings.kt
index 04391b16923..99a62cfbdaa 100644
--- a/libraries/stdlib/src/generated/_Strings.kt
+++ b/libraries/stdlib/src/generated/_Strings.kt
@@ -491,6 +491,46 @@ public fun String.reversed(): String {
     return StringBuilder(this).reverse().toString()
 }
 
+/**
+ * Returns a [Map] containing key-value pairs provided by [transform] function applied to characters of the given char sequence.
+ * If any of two pairs would have the same key the last one gets added to the map.
+ */
+public inline fun <K, V> CharSequence.associate(transform: (Char) -> Pair<K, V>): Map<K, V> {
+    val capacity = (length/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result += transform(element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the characters from the given char sequence indexed by the key
+ * returned from [keySelector] function applied to each character.
+ * If any two characters would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K> CharSequence.associateBy(keySelector: (Char) -> K): Map<K, Char> {
+    val capacity = (length/.75f) + 1
+    val result = LinkedHashMap<K, Char>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), element)
+    }
+    return result
+}
+
+/**
+ * Returns a [Map] containing the values provided by [valueTransform] and indexed by [keySelector] functions applied to characters of the given char sequence.
+ * If any two characters would have the same key returned by [keySelector] the last one gets added to the map.
+ */
+public inline fun <K, V> CharSequence.associateBy(keySelector: (Char) -> K, valueTransform: (Char) -> V): Map<K, V> {
+    val capacity = (length/.75f) + 1
+    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
+    for (element in this) {
+        result.put(keySelector(element), valueTransform(element))
+    }
+    return result
+}
+
 /**
  * Returns an [ArrayList] of all characters.
  */
@@ -526,50 +566,25 @@ public fun CharSequence.toList(): List<Char> {
  * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to characters of the given char sequence.
  * If any two characters would have the same key returned by [selector] the last one gets added to the map.
  */
-@Deprecated("Use toMapBy instead.", ReplaceWith("toMapBy(selector, transform)"))
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> CharSequence.toMap(selector: (Char) -> K, transform: (Char) -> V): Map<K, V> {
-    return toMapBy(selector, transform)
+    return associateBy(selector, transform)
 }
 
-/**
- * Returns a [Map] containing key-value pairs provided by [transform] function applied to characters of the given char sequence.
- * If any of two pairs would have the same key the last one gets added to the map.
- */
+@Deprecated("Use associate instead.", ReplaceWith("associate(transform)"))
 @kotlin.jvm.JvmName("toMapOfPairs")
 public inline fun <K, V> CharSequence.toMap(transform: (Char) -> Pair<K, V>): Map<K, V> {
-    val capacity = (length/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result += transform(element)
-    }
-    return result
+    return associate(transform)
 }
 
-/**
- * Returns a [Map] containing the characters from the given char sequence indexed by the key
- * returned from [selector] function applied to each character.
- * If any two characters would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector)"))
 public inline fun <K> CharSequence.toMapBy(selector: (Char) -> K): Map<K, Char> {
-    val capacity = (length/.75f) + 1
-    val result = LinkedHashMap<K, Char>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), element)
-    }
-    return result
+    return associateBy(selector)
 }
 
-/**
- * Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to characters of the given char sequence.
- * If any two characters would have the same key returned by [selector] the last one gets added to the map.
- */
+@Deprecated("Use associateBy instead.", ReplaceWith("associateBy(selector, transform)"))
 public inline fun <K, V> CharSequence.toMapBy(selector: (Char) -> K, transform: (Char) -> V): Map<K, V> {
-    val capacity = (length/.75f) + 1
-    val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
-    for (element in this) {
-        result.put(selector(element), transform(element))
-    }
-    return result
+    return associateBy(selector, transform)
 }
 
 /**
diff --git a/libraries/stdlib/src/kotlin/text/CharCategoryJVM.kt b/libraries/stdlib/src/kotlin/text/CharCategoryJVM.kt
index eb85e23d456..969112004a9 100644
--- a/libraries/stdlib/src/kotlin/text/CharCategoryJVM.kt
+++ b/libraries/stdlib/src/kotlin/text/CharCategoryJVM.kt
@@ -161,7 +161,7 @@ public enum class CharCategory(public val value: Int, public val code: String) {
 
 
     public companion object {
-        private val categoryMap by lazy { CharCategory.values().toMapBy { it.value } }
+        private val categoryMap by lazy { CharCategory.values().associateBy { it.value } }
 
         public fun valueOf(category: Int): CharCategory = categoryMap[category] ?: throw IllegalArgumentException("Category #$category is not defined.")
     }
diff --git a/libraries/stdlib/src/kotlin/text/CharDirectionalityJVM.kt b/libraries/stdlib/src/kotlin/text/CharDirectionalityJVM.kt
index 8ea0c8cc9ec..e824b3baca9 100644
--- a/libraries/stdlib/src/kotlin/text/CharDirectionalityJVM.kt
+++ b/libraries/stdlib/src/kotlin/text/CharDirectionalityJVM.kt
@@ -110,7 +110,7 @@ public enum class CharDirectionality(public val value: Int) {
 
 
     public companion object {
-        private val directionalityMap by lazy { CharDirectionality.values().toMapBy { it.value } }
+        private val directionalityMap by lazy { CharDirectionality.values().associateBy { it.value } }
 
         public fun valueOf(directionality: Int): CharDirectionality = directionalityMap[directionality] ?: throw IllegalArgumentException("Directionality #$directionality is not defined.")
     }
diff --git a/libraries/stdlib/test/collections/MapJVMTest.kt b/libraries/stdlib/test/collections/MapJVMTest.kt
index d921ecfe575..1b59e9fb120 100644
--- a/libraries/stdlib/test/collections/MapJVMTest.kt
+++ b/libraries/stdlib/test/collections/MapJVMTest.kt
@@ -44,7 +44,7 @@ class MapJVMTest {
     }
 
     @test fun iterateAndRemove() {
-        val map = (1..5).toMapBy({ it }, { 'a' + it }).toLinkedMap()
+        val map = (1..5).associateBy({ it }, { 'a' + it }).toLinkedMap()
         val iterator = map.iterator()
         while (iterator.hasNext()) {
             if (iterator.next().key % 2 == 0)
diff --git a/libraries/stdlib/test/collections/MapTest.kt b/libraries/stdlib/test/collections/MapTest.kt
index 25e5ea796f4..13fce7fdf7e 100644
--- a/libraries/stdlib/test/collections/MapTest.kt
+++ b/libraries/stdlib/test/collections/MapTest.kt
@@ -172,7 +172,7 @@ class MapTest {
     }
 
     @test fun createWithSelector() {
-        val map = listOf("a", "bb", "ccc").toMapBy { it.length }
+        val map = listOf("a", "bb", "ccc").associateBy { it.length }
         assertEquals(3, map.size)
         assertEquals("a", map.get(1))
         assertEquals("bb", map.get(2))
@@ -180,14 +180,14 @@ class MapTest {
     }
 
     @test fun createWithSelectorAndOverwrite() {
-        val map = listOf("aa", "bb", "ccc").toMapBy { it.length }
+        val map = listOf("aa", "bb", "ccc").associateBy { it.length }
         assertEquals(2, map.size)
         assertEquals("bb", map.get(2))
         assertEquals("ccc", map.get(3))
     }
 
     @test fun createWithSelectorForKeyAndValue() {
-        val map = listOf("a", "bb", "ccc").toMapBy({ it.length }, { it.toUpperCase() })
+        val map = listOf("a", "bb", "ccc").associateBy({ it.length }, { it.toUpperCase() })
         assertEquals(3, map.size)
         assertEquals("A", map[1])
         assertEquals("BB", map[2])
@@ -195,7 +195,7 @@ class MapTest {
     }
 
     @test fun createWithPairSelector() {
-        val map = listOf("a", "bb", "ccc").toMap { it.length to it.toUpperCase() }
+        val map = listOf("a", "bb", "ccc").associate { it.length to it.toUpperCase() }
         assertEquals(3, map.size)
         assertEquals("A", map[1])
         assertEquals("BB", map[2])
diff --git a/libraries/tools/idl2k/src/main/kotlin/gen.kt b/libraries/tools/idl2k/src/main/kotlin/gen.kt
index 85b46916866..ad683832d76 100644
--- a/libraries/tools/idl2k/src/main/kotlin/gen.kt
+++ b/libraries/tools/idl2k/src/main/kotlin/gen.kt
@@ -170,11 +170,11 @@ fun mapDefinitions(repository: Repository, definitions: Iterable<InterfaceDefini
         definitions.filter { "NoInterfaceObject" !in it.extendedAttributes.map { it.call } }.map { generateTrait(repository, it) }
 
 fun generateUnions(ifaces: List<GenerateTraitOrClass>, typedefs: Iterable<TypedefDefinition>): GenerateUnionTypes {
-    val declaredTypes = ifaces.toMapBy { it.name }
+    val declaredTypes = ifaces.associateBy { it.name }
 
     val anonymousUnionTypes = collectUnionTypes(declaredTypes)
     val anonymousUnionTypeTraits = generateUnionTypeTraits(anonymousUnionTypes)
-    val anonymousUnionsMap = anonymousUnionTypeTraits.toMapBy { it.name }
+    val anonymousUnionsMap = anonymousUnionTypeTraits.associateBy { it.name }
 
     val typedefsToBeGenerated = typedefs.filter { it.types is UnionType }
             .map { NamedValue(it.name, it.types as UnionType) }
diff --git a/libraries/tools/idl2k/src/main/kotlin/render.kt b/libraries/tools/idl2k/src/main/kotlin/render.kt
index e42c05c6cb2..06395d425c7 100644
--- a/libraries/tools/idl2k/src/main/kotlin/render.kt
+++ b/libraries/tools/idl2k/src/main/kotlin/render.kt
@@ -227,7 +227,7 @@ private fun Pair<String, String>.betterName() = if (((0..9).map { it.toString()
 fun <K, V> List<Pair<K, V>>.toMultiMap(): Map<K, List<V>> = groupBy { it.first }.mapValues { it.value.map { it.second } }
 
 fun Appendable.render(namespace: String, ifaces: List<GenerateTraitOrClass>, unions : GenerateUnionTypes) {
-    val declaredTypes = ifaces.toMapBy { it.name }
+    val declaredTypes = ifaces.associateBy { it.name }
 
     val allTypes = declaredTypes + unions.anonymousUnionsMap + unions.typedefsMarkersMap
     declaredTypes.values.filter { it.namespace == namespace }.forEach {
diff --git a/libraries/tools/kotlin-stdlib-gen/src/templates/Snapshots.kt b/libraries/tools/kotlin-stdlib-gen/src/templates/Snapshots.kt
index a20e5fdc5fb..d1bb7b71063 100644
--- a/libraries/tools/kotlin-stdlib-gen/src/templates/Snapshots.kt
+++ b/libraries/tools/kotlin-stdlib-gen/src/templates/Snapshots.kt
@@ -111,6 +111,15 @@ fun snapshots(): List<GenericFunction> {
         typeParam("V")
         returns("Map<K, V>")
         annotations("""@kotlin.jvm.JvmName("toMapOfPairs")""")
+        deprecate(Deprecation("Use associate instead.", replaceWith = "associate(transform)"))
+    }
+
+    templates add f("associate(transform: (T) -> Pair<K, V>)") {
+        inline(true)
+        include(CharSequences)
+        typeParam("K")
+        typeParam("V")
+        returns("Map<K, V>")
         doc { f ->
             """
             Returns a [Map] containing key-value pairs provided by [transform] function applied to ${f.element}s of the given ${f.collection}.
@@ -159,13 +168,21 @@ fun snapshots(): List<GenericFunction> {
     }
 
     templates add f("toMapBy(selector: (T) -> K)") {
+        inline(true)
+        typeParam("K")
+        returns("Map<K, T>")
+        include(CharSequences)
+        deprecate(Deprecation("Use associateBy instead.", replaceWith = "associateBy(selector)"))
+    }
+
+    templates add f("associateBy(keySelector: (T) -> K)") {
         inline(true)
         typeParam("K")
         doc { f ->
             """
             Returns a [Map] containing the ${f.element.pluralize()} from the given ${f.collection} indexed by the key
-            returned from [selector] function applied to each ${f.element}.
-            If any two ${f.element.pluralize()} would have the same key returned by [selector] the last one gets added to the map.
+            returned from [keySelector] function applied to each ${f.element}.
+            If any two ${f.element.pluralize()} would have the same key returned by [keySelector] the last one gets added to the map.
             """
         }
         returns("Map<K, T>")
@@ -180,7 +197,7 @@ fun snapshots(): List<GenericFunction> {
             val capacity = (collectionSizeOrDefault(10)/.75f) + 1
             val result = LinkedHashMap<K, T>(Math.max(capacity.toInt(), 16))
             for (element in this) {
-                result.put(selector(element), element)
+                result.put(keySelector(element), element)
             }
             return result
             """
@@ -189,7 +206,7 @@ fun snapshots(): List<GenericFunction> {
             """
             val result = LinkedHashMap<K, T>()
             for (element in this) {
-                result.put(selector(element), element)
+                result.put(keySelector(element), element)
             }
             return result
             """
@@ -199,7 +216,7 @@ fun snapshots(): List<GenericFunction> {
             val capacity = (length/.75f) + 1
             val result = LinkedHashMap<K, T>(Math.max(capacity.toInt(), 16))
             for (element in this) {
-                result.put(selector(element), element)
+                result.put(keySelector(element), element)
             }
             return result
             """
@@ -209,7 +226,7 @@ fun snapshots(): List<GenericFunction> {
             val capacity = (size/.75f) + 1
             val result = LinkedHashMap<K, T>(Math.max(capacity.toInt(), 16))
             for (element in this) {
-                result.put(selector(element), element)
+                result.put(keySelector(element), element)
             }
             return result
             """
@@ -228,17 +245,26 @@ fun snapshots(): List<GenericFunction> {
             """
         }
         returns("Map<K, V>")
-        deprecate(Deprecation("Use toMapBy instead.", "toMapBy(selector, transform)"))
+        deprecate(Deprecation("Use associateBy instead.", "associateBy(selector, transform)"))
     }
 
     templates add f("toMapBy(selector: (T) -> K, transform: (T) -> V)") {
+        inline(true)
+        typeParam("K")
+        typeParam("V")
+        include(CharSequences)
+        returns("Map<K, V>")
+        deprecate(Deprecation("Use associateBy instead.", replaceWith = "associateBy(selector, transform)"))
+    }
+
+    templates add f("associateBy(keySelector: (T) -> K, valueTransform: (T) -> V)") {
         inline(true)
         typeParam("K")
         typeParam("V")
         doc { f ->
             """
-            Returns a [Map] containing the values provided by [transform] and indexed by [selector] functions applied to ${f.element.pluralize()} of the given ${f.collection}.
-            If any two ${f.element.pluralize()} would have the same key returned by [selector] the last one gets added to the map.
+            Returns a [Map] containing the values provided by [valueTransform] and indexed by [keySelector] functions applied to ${f.element.pluralize()} of the given ${f.collection}.
+            If any two ${f.element.pluralize()} would have the same key returned by [keySelector] the last one gets added to the map.
             """
         }
         returns("Map<K, V>")
@@ -253,7 +279,7 @@ fun snapshots(): List<GenericFunction> {
             val capacity = (collectionSizeOrDefault(10)/.75f) + 1
             val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
             for (element in this) {
-                result.put(selector(element), transform(element))
+                result.put(keySelector(element), valueTransform(element))
             }
             return result
             """
@@ -262,7 +288,7 @@ fun snapshots(): List<GenericFunction> {
             """
             val result = LinkedHashMap<K, V>()
             for (element in this) {
-                result.put(selector(element), transform(element))
+                result.put(keySelector(element), valueTransform(element))
             }
             return result
             """
@@ -272,7 +298,7 @@ fun snapshots(): List<GenericFunction> {
             val capacity = (length/.75f) + 1
             val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
             for (element in this) {
-                result.put(selector(element), transform(element))
+                result.put(keySelector(element), valueTransform(element))
             }
             return result
             """
@@ -282,7 +308,7 @@ fun snapshots(): List<GenericFunction> {
             val capacity = (size/.75f) + 1
             val result = LinkedHashMap<K, V>(Math.max(capacity.toInt(), 16))
             for (element in this) {
-                result.put(selector(element), transform(element))
+                result.put(keySelector(element), valueTransform(element))
             }
             return result
             """