JS: move expressions test to box tests

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

@@ -0,0 +1,15 @@
+package foo
+
+fun box(): String {
+    var x = 0
+    assertEquals(false, ++x > x)
+    assertEquals(false, ++x > try {x} finally {})
+
+    assertEquals(false, x++ > x)
+    assertEquals(false, x++ > try {x} finally {})
+
+    assertEquals(true, ++x == x)
+    assertEquals(true, ++x == try {x} finally {})
+
+    return "OK"
+}