Cleanup: suppress warnings where appropriate.

libraries/stdlib/src/generated/_Arrays.kt

@@ -10823,6 +10823,7 @@ public fun <T : Any> Array<T?>.requireNoNulls(): Array<T> {
             throw IllegalArgumentException("null element found in $this.")
         }
     }
+    @Suppress("CAST_NEVER_SUCCEEDS")
     return this as Array<T>
 }
 
@@ -12531,6 +12532,7 @@ public inline fun <reified R, C : MutableCollection<in R>> Array<*>.filterIsInst
  */
 @kotlin.jvm.JvmVersion
 public fun <C : MutableCollection<in R>, R> Array<*>.filterIsInstanceTo(destination: C, klass: Class<R>): C {
+    @Suppress("UNCHECKED_CAST")
     for (element in this) if (klass.isInstance(element)) destination.add(element as R)
     return destination
 }
@@ -13002,6 +13004,7 @@ public fun ByteArray.toTypedArray(): Array<Byte> {
     val result = arrayOfNulls<Byte>(size)
     for (index in indices)
         result[index] = this[index]
+    @Suppress("CAST_NEVER_SUCCEEDS")
     return result as Array<Byte>
 }
 
@@ -13013,6 +13016,7 @@ public fun ShortArray.toTypedArray(): Array<Short> {
     val result = arrayOfNulls<Short>(size)
     for (index in indices)
         result[index] = this[index]
+    @Suppress("CAST_NEVER_SUCCEEDS")
     return result as Array<Short>
 }
 
@@ -13024,6 +13028,7 @@ public fun IntArray.toTypedArray(): Array<Int> {
     val result = arrayOfNulls<Int>(size)
     for (index in indices)
         result[index] = this[index]
+    @Suppress("CAST_NEVER_SUCCEEDS")
     return result as Array<Int>
 }
 
@@ -13035,6 +13040,7 @@ public fun LongArray.toTypedArray(): Array<Long> {
     val result = arrayOfNulls<Long>(size)
     for (index in indices)
         result[index] = this[index]
+    @Suppress("CAST_NEVER_SUCCEEDS")
     return result as Array<Long>
 }
 
@@ -13046,6 +13052,7 @@ public fun FloatArray.toTypedArray(): Array<Float> {
     val result = arrayOfNulls<Float>(size)
     for (index in indices)
         result[index] = this[index]
+    @Suppress("CAST_NEVER_SUCCEEDS")
     return result as Array<Float>
 }
 
@@ -13057,6 +13064,7 @@ public fun DoubleArray.toTypedArray(): Array<Double> {
     val result = arrayOfNulls<Double>(size)
     for (index in indices)
         result[index] = this[index]
+    @Suppress("CAST_NEVER_SUCCEEDS")
     return result as Array<Double>
 }
 
@@ -13068,6 +13076,7 @@ public fun BooleanArray.toTypedArray(): Array<Boolean> {
     val result = arrayOfNulls<Boolean>(size)
     for (index in indices)
         result[index] = this[index]
+    @Suppress("CAST_NEVER_SUCCEEDS")
     return result as Array<Boolean>
 }
 
@@ -13079,6 +13088,7 @@ public fun CharArray.toTypedArray(): Array<Char> {
     val result = arrayOfNulls<Char>(size)
     for (index in indices)
         result[index] = this[index]
+    @Suppress("CAST_NEVER_SUCCEEDS")
     return result as Array<Char>
 }
 

libraries/stdlib/src/generated/_Collections.kt

@@ -799,6 +799,7 @@ public fun <T : Comparable<T>> MutableList<T>.sortDescending(): Unit {
 public fun <T : Comparable<T>> Iterable<T>.sorted(): List<T> {
     if (this is Collection) {
         if (size <= 1) return this.toMutableList()
+        @Suppress("CAST_NEVER_SUCCEEDS")
         return (toTypedArray<Comparable<T>>() as Array<T>).apply { sort() }.asList()
     }
     return toMutableList().apply { sort() }
@@ -831,6 +832,7 @@ public fun <T : Comparable<T>> Iterable<T>.sortedDescending(): List<T> {
 public fun <T> Iterable<T>.sortedWith(comparator: Comparator<in T>): List<T> {
     if (this is Collection) {
        if (size <= 1) return this.toMutableList()
+       @Suppress("CAST_NEVER_SUCCEEDS")
        return (toTypedArray<Any?>() as Array<T>).apply { sortWith(comparator) }.asList()
     }
     return toMutableList().apply { sortWith(comparator) }
@@ -1593,6 +1595,7 @@ public fun <T : Any> Iterable<T?>.requireNoNulls(): Iterable<T> {
             throw IllegalArgumentException("null element found in $this.")
         }
     }
+    @Suppress("UNCHECKED_CAST")
     return this as Iterable<T>
 }
 
@@ -1605,6 +1608,7 @@ public fun <T : Any> List<T?>.requireNoNulls(): List<T> {
             throw IllegalArgumentException("null element found in $this.")
         }
     }
+    @Suppress("UNCHECKED_CAST")
     return this as List<T>
 }
 
@@ -1896,6 +1900,7 @@ public inline fun <reified R, C : MutableCollection<in R>> Iterable<*>.filterIsI
  */
 @kotlin.jvm.JvmVersion
 public fun <C : MutableCollection<in R>, R> Iterable<*>.filterIsInstanceTo(destination: C, klass: Class<R>): C {
+    @Suppress("UNCHECKED_CAST")
     for (element in this) if (klass.isInstance(element)) destination.add(element as R)
     return destination
 }

libraries/stdlib/src/generated/_Sequences.kt

@@ -343,6 +343,7 @@ public fun <T> Sequence<T>.filterNot(predicate: (T) -> Boolean): Sequence<T> {
  * Returns a sequence containing all elements that are not `null`.
  */
 public fun <T : Any> Sequence<T?>.filterNotNull(): Sequence<T> {
+    @Suppress("UNCHECKED_CAST")
     return filterNot { it == null } as Sequence<T>
 }
 
@@ -1179,6 +1180,7 @@ public inline fun <T> Sequence<T>.asSequence(): Sequence<T> {
  */
 @kotlin.jvm.JvmVersion
 public inline fun <reified R> Sequence<*>.filterIsInstance(): Sequence<@kotlin.internal.NoInfer R> {
+    @Suppress("UNCHECKED_CAST")
     return filter { it is R } as Sequence<R>
 }
 
@@ -1187,6 +1189,7 @@ public inline fun <reified R> Sequence<*>.filterIsInstance(): Sequence<@kotlin.i
  */
 @kotlin.jvm.JvmVersion
 public fun <R> Sequence<*>.filterIsInstance(klass: Class<R>): Sequence<R> {
+    @Suppress("UNCHECKED_CAST")
     return filter { klass.isInstance(it) } as Sequence<R>
 }
 
@@ -1204,6 +1207,7 @@ public inline fun <reified R, C : MutableCollection<in R>> Sequence<*>.filterIsI
  */
 @kotlin.jvm.JvmVersion
 public fun <C : MutableCollection<in R>, R> Sequence<*>.filterIsInstanceTo(destination: C, klass: Class<R>): C {
+    @Suppress("UNCHECKED_CAST")
     for (element in this) if (klass.isInstance(element)) destination.add(element as R)
     return destination
 }