JS: move expressions test to box tests

js/js.translator/testData/box/expression/while/whileWithComplexOneStatement.kt

@@ -0,0 +1,19 @@
+package foo
+
+fun box(): String {
+    var s: String = ""
+
+    var i:Int = 0
+    while(i<2)
+        try { s += "A"; i++} finally {}
+    assertEquals("AA", s)
+
+    s = ""
+    i = 0
+    do
+        try { s += "A"; i++} finally {}
+    while(i<2)
+    assertEquals("AA", s)
+
+    return "OK"
+}