Move sources of ranges to common stdlib from builtins

But still cherry-pick them when serializing builtins because they are
used in builtins signatures.

Merge-request: KT-MR-6488
Merged-by: Ilya Gorbunov <Ilya.Gorbunov@jetbrains.com>

libraries/stdlib/native-wasm/src/kotlin/collections/Iterators.kt

@@ -1,70 +0,0 @@
-/*
- * Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
- * that can be found in the LICENSE file.
- */
-
-package kotlin.collections
-
-/** An iterator over a sequence of values of type `Byte`. */
-public abstract class ByteIterator : Iterator<Byte> {
-    override final fun next() = nextByte()
-
-    /** Returns the next value in the sequence without boxing. */
-    public abstract fun nextByte(): Byte
-}
-
-/** An iterator over a sequence of values of type `Char`. */
-public abstract class CharIterator : Iterator<Char> {
-    override final fun next() = nextChar()
-
-    /** Returns the next value in the sequence without boxing. */
-    public abstract fun nextChar(): Char
-}
-
-/** An iterator over a sequence of values of type `Short`. */
-public abstract class ShortIterator : Iterator<Short> {
-    override final fun next() = nextShort()
-
-    /** Returns the next value in the sequence without boxing. */
-    public abstract fun nextShort(): Short
-}
-
-/** An iterator over a sequence of values of type `Int`. */
-public abstract class IntIterator : Iterator<Int> {
-    override final fun next() = nextInt()
-
-    /** Returns the next value in the sequence without boxing. */
-    public abstract fun nextInt(): Int
-}
-
-/** An iterator over a sequence of values of type `Long`. */
-public abstract class LongIterator : Iterator<Long> {
-    override final fun next() = nextLong()
-
-    /** Returns the next value in the sequence without boxing. */
-    public abstract fun nextLong(): Long
-}
-
-/** An iterator over a sequence of values of type `Float`. */
-public abstract class FloatIterator : Iterator<Float> {
-    override final fun next() = nextFloat()
-
-    /** Returns the next value in the sequence without boxing. */
-    public abstract fun nextFloat(): Float
-}
-
-/** An iterator over a sequence of values of type `Double`. */
-public abstract class DoubleIterator : Iterator<Double> {
-    override final fun next() = nextDouble()
-
-    /** Returns the next value in the sequence without boxing. */
-    public abstract fun nextDouble(): Double
-}
-
-/** An iterator over a sequence of values of type `Boolean`. */
-public abstract class BooleanIterator : Iterator<Boolean> {
-    override final fun next() = nextBoolean()
-
-    /** Returns the next value in the sequence without boxing. */
-    public abstract fun nextBoolean(): Boolean
-}