Fix js RegExp test not to rely on array equality. #KT-8283

js/js.libraries/src/core/regexp.kt

@@ -39,7 +39,7 @@ public fun RegExp.reset() {
     lastIndex = 0
 }
 
-
+// TODO: Inherit from array or introduce asArray() extension
 @native public interface RegExpMatch {
     public val index: Int
     public val input: String
@@ -48,3 +48,6 @@ public fun RegExp.reset() {
     @nativeGetter
     public operator fun get(index: Int): String?
 }
+
+
+public inline fun RegExpMatch.asArray(): Array<out String?> = this.asDynamic()

js/js.libraries/test/core/RegExpTest.kt

@@ -55,22 +55,16 @@ class RegExpTest {
         val string = "R2D2 beats A5D5 "
         var re = RegExp("""(\w\d)(\w\d)""", "g")
         val m1 = re.exec(string)!!
-        assertEquals(arrayOf("R2D2", "R2", "D2"), m1.toArray())
+        assertEquals(listOf("R2D2", "R2", "D2"), m1.asArray().asList())
         assertEquals(0, m1.index)
         assertEquals(4, re.lastIndex)
 
         val m2 = re.exec(string)!!
-        assertEquals(arrayOf("A5D5", "A5", "D5"), m2.toArray())
+        assertEquals(listOf("A5D5", "A5", "D5"), m2.asArray().asList())
         assertEquals(string.indexOf(m2[0]!!), m2.index)
 
         val noMatch = re.exec(string)
         assertEquals(null, noMatch)
         assertEquals(0, re.lastIndex)
     }
-
-    fun RegExpMatch.toArray(): Array<out String?> {
-        val array = arrayOfNulls<String>(length)
-        array.indices.forEach { array[it] = this[it] }
-        return array
-    }
 }