JS: move expressions test to box tests

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

@@ -0,0 +1,15 @@
+package foo
+
+fun box(): String {
+    var  i = 0
+    var t = ++i + when(i) {
+        3 -> 4
+        1 -> 2
+        0 -> 1
+        else -> 100
+    }
+    if (t != 3) {
+        return "fail: $t"
+    }
+    return "OK"
+}