JS: move expressions test to box tests

js/js.translator/testData/box/expression/evaluationOrder/evaluationOrder1.kt

@@ -0,0 +1,17 @@
+package foo
+
+var d = 0
+
+fun f(): Int {
+    d = if (d < 0) -100 else 100
+    return d
+}
+
+fun box(): String {
+    d = d-- + f() + when(d) {
+        -100 -> return "OK"
+        1 -> 1
+        else -> return "fail1"
+    }
+    return "fail2"
+}