[JS IR] stdlib: Fix bugs in Long.toString(radix)

libraries/stdlib/js-ir/runtime/long.kt

@@ -259,5 +259,5 @@ public class Long internal constructor(
 
     override fun hashCode(): Int = hashCode(this)
 
-    override fun toString(): String = toString(10)
+    override fun toString(): String = this.toStringImpl(radix = 10)
 }

libraries/stdlib/js-ir/runtime/longjs.kt

@@ -24,7 +24,7 @@ internal fun Long.getLowBitsUnsigned() = if (low >= 0) low.toDouble() else TWO_P
 
 internal fun hashCode(l: Long) = l.low xor l.high
 
-internal fun Long.toString(radix: Int): String {
+internal fun Long.toStringImpl(radix: Int): String {
     if (radix < 2 || 36 < radix) {
         throw Exception("radix out of range: $radix")
     }
@@ -39,10 +39,11 @@ internal fun Long.toString(radix: Int): String {
             // the bottom-most digit in this base and then recurse to do the rest.
             val radixLong = fromInt(radix)
             val div = div(radixLong)
-            val rem = div.multiply(radixLong).subtract(this).toInt();
-            return js("div.toString(radix) + rem.toString(radix)")
+            val rem = div.multiply(radixLong).subtract(this).toInt()
+            // Using rem.asDynamic() to break dependency on "kotlin.text" package
+            return div.toStringImpl(radix) + rem.asDynamic().toString(radix).unsafeCast<String>()
         } else {
-            return "-${negate().toString()}"
+            return "-${negate().toStringImpl(radix)}"
         }
     }
 

libraries/stdlib/js-ir/src/kotlin/text/numberConversions.kt

@@ -0,0 +1,15 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package kotlin.text
+
+/**
+ * Returns a string representation of this [Long] value in the specified [radix].
+ *
+ * @throws IllegalArgumentException when [radix] is not a valid radix for number to string conversion.
+ */
+@SinceKotlin("1.2")
+public actual fun Long.toString(radix: Int): String =
+    this.toStringImpl(checkRadix(radix))

libraries/stdlib/js-v1/src/kotlin/text/numberConversions.kt

@@ -0,0 +1,14 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package kotlin.text
+
+/**
+ * Returns a string representation of this [Long] value in the specified [radix].
+ *
+ * @throws IllegalArgumentException when [radix] is not a valid radix for number to string conversion.
+ */
+@SinceKotlin("1.2")
+public actual fun Long.toString(radix: Int): String = asDynamic().toString(checkRadix(radix))

libraries/stdlib/js/src/kotlin/text/numberConversions.kt

@@ -113,14 +113,6 @@ public actual inline fun Byte.toString(radix: Int): String = this.toInt().toStri
 @kotlin.internal.InlineOnly
 public actual inline fun Short.toString(radix: Int): String = this.toInt().toString(radix)
 
-/**
- * Returns a string representation of this [Long] value in the specified [radix].
- *
- * @throws IllegalArgumentException when [radix] is not a valid radix for number to string conversion.
- */
-@SinceKotlin("1.2")
-public actual fun Long.toString(radix: Int): String = asDynamic().toString(checkRadix(radix))
-
 /**
  * Returns a string representation of this [Int] value in the specified [radix].
  *