Fix and reenable dart2js extra tests and dart2js native tests.

tests/compiler/dart2js_extra/named_parameter_for_static_test.dart

 // Copyright (c) 2012, 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.
 
-oneOptionalArgument(a, [b]) {
+oneOptionalArgument(a, {b}) {
   Expect.equals(1, a);
   Expect.equals(2, b);
 }
 
-twoOptionalArguments([a, b]) {
+twoOptionalArguments({a, b}) {
   Expect.equals(1, a);
   Expect.equals(2, b);
 }
 
 main() {
   twoOptionalArguments(a: 1, b: 2);
   twoOptionalArguments(b: 2, a: 1);
-  twoOptionalArguments(1, b: 2);
-  twoOptionalArguments(1, 2);
 
-  oneOptionalArgument(1, 2);
   oneOptionalArgument(1, b: 2);
 
   new A.twoOptionalArguments(a: 1, b: 2);
   new A.twoOptionalArguments(b: 2, a: 1);
-  new A.twoOptionalArguments(1, b: 2);
-  new A.twoOptionalArguments(1, 2);
 
-  new A.oneOptionalArgument(1, 2);
   new A.oneOptionalArgument(1, b: 2);
 
-/* TODO(ngeoffray): Enable once we support super constructor call.
   new B.one();
   new B.two();
   new B.three();
-  new B.four();
-  new B.five();
-  new B.six();
-*/
 
-  new B().one();
-  new B().two();
-  new B().three();
-  new B().four();
-  new B().five();
-  new B().six();
+  new B().B_one();
+  new B().B_two();
+  new B().B_three();
 }
 
 class A {
-  A.oneOptionalArgument(a, [b]) {
+  A.oneOptionalArgument(a, {b}) {
     Expect.equals(1, a);
     Expect.equals(2, b);
   }
 
-  A.twoOptionalArguments([a, b]) {
+  A.twoOptionalArguments({a, b}) {
     Expect.equals(1, a);
     Expect.equals(2, b);
   }
 
   A();
 
-  oneOptionalArgument(a, [b]) {
+  // A named constructor now conflicts with a method of the same name.
+  oneOptArg(a, {b}) {
     Expect.equals(1, a);
     Expect.equals(2, b);
   }
 
-  twoOptionalArguments([a, b]) {
+  twoOptArgs({a, b}) {
     Expect.equals(1, a);
     Expect.equals(2, b);
   }
 }
 
 class B extends A {
   B.one() : super.twoOptionalArguments(a: 1, b: 2);
   B.two() : super.twoOptionalArguments(b: 2, a: 1);
-  B.three() : super.twoOptionalArguments(1, b: 2);
-  B.four() : super.twoOptionalArguments(1, 2);
-  B.five() : super.oneOptionalArgument(1, 2);
-  B.six() : super.oneOptionalArgument(1, b: 2);
+  B.three() : super.oneOptionalArgument(1, b: 2);
 
   B();
-  one() { super.twoOptionalArguments(a: 1, b: 2); }
-  two() { super.twoOptionalArguments(b: 2, a: 1); }
-  three() { super.twoOptionalArguments(1, b: 2); }
-  four() { super.twoOptionalArguments(1, 2); }
-  five() { super.oneOptionalArgument(1, 2); }
-  six() { super.oneOptionalArgument(1, b: 2); }
+  B_one() { super.twoOptArgs(a: 1, b: 2); }
+  B_two() { super.twoOptArgs(b: 2, a: 1); }
+  B_three() { super.oneOptArg(1, b: 2); }
 }