JS: move expressions test to box tests

js/js.translator/testData/box/expression/evaluationOrder/whenJsLiteralWithSideEffect.kt

@@ -0,0 +1,38 @@
+package foo
+
+var global: String = ""
+
+fun bar(s: String): Int {
+    global += s
+    return 1
+}
+fun testWhen() {
+    global = ""
+    when(arrayOf(bar("A"),2,3)) {
+        arrayOf(1) -> println("1")
+        arrayOf(2) -> println("2")
+        else  -> println("else")
+    }
+    assertEquals("A", global)
+
+}
+
+fun testIntrinsic() {
+    global = ""
+    val x = arrayOf(bar("A")) == try { arrayOf(bar("B")) } finally {}
+    assertEquals("AB", global)
+}
+
+fun testElvis() {
+    global = ""
+    var x = arrayOf(bar("A")) ?: 10
+    assertEquals("A", global)
+}
+
+fun box(): String {
+    testWhen()
+    testIntrinsic()
+    testElvis()
+
+    return "OK"
+}