dart2js_native tests: Migrate 'native STRING' to JS-calls - part 2/2

tests/compiler/dart2js_native/native_method_inlining_test.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // Test that native methods with unnamed optional arguments are called with the
 // number of arguments in the call site AND the call site is inlined.
 
 import 'native_testing.dart';
 
 typedef int Int2Int(int x);
@@ skipping 35 matching lines @@
     var r1 = x.callFun((x) => x * 2); // Can't be inlined due to conversion.
     var r2 = x.callFun((x) => x * 0);
     return r1 + r2;
   }
 }
 
 A makeA() native;
 
 String findMethodTextContaining(instance, string) native;
 
-void setup() native r"""
-function A() {}
-A.prototype.foo = function () { return arguments.length; };
-A.prototype.callFun = function (fn) { return fn ? fn(123) : 1; };
+void setup() {
+  JS('', r"""
+(function(){
+  function A() {}
+  A.prototype.foo = function () { return arguments.length; };
+  A.prototype.callFun = function (fn) { return fn ? fn(123) : 1; };
 
-makeA = function(){return new A;};
+  makeA = function(){return new A()};
 
-findMethodTextContaining = function (instance, string) {
-  var proto = Object.getPrototypeOf(instance);
-  var keys = Object.keys(proto);
-  for (var i = 0; i < keys.length; i++) {
-    var name = keys[i];
-    var member = proto[name];
-    var s = String(member);
-    if (s.indexOf(string)>0) return s;
-  }
-};
+  findMethodTextContaining = function (instance, string) {
+    var proto = Object.getPrototypeOf(instance);
+    var keys = Object.keys(proto);
+    for (var i = 0; i < keys.length; i++) {
+      var name = keys[i];
+      var member = proto[name];
+      var s = String(member);
+      if (s.indexOf(string)>0) return s;
+    }
+  };
 
-self.nativeConstructor(A);
-""";
+  self.nativeConstructor(A);
+})()""");
+}
 
 bool get isCheckedMode {
   int i = 0;
   try {
     i = 'a';
   } catch (e) {
     return true;
   }
   return false;
 }
@@ skipping 61 matching lines @@
   Expect.equals(2, b.method2());
   Expect.equals(246, b.method3());
 }
 
 main() {
   nativeTesting();
   setup();
   test1();
   test2();
 }