Update almost all tests (except co19) to use the new try-catch syntax.

tests/compiler/dart2js_foreign/native_no_such_method_exception2_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.
 
 @native("*A")
 class A  {
 }
 
 @native("*B")
 class B extends A  {
@@ skipping 22 matching lines @@
   B.prototype.foo = function() { return 42; }
 """)
 setup();
 
 main() {
   setup();
   var a = makeA();
   var exception;
   try {
     a.foo();
-  } catch (NoSuchMethodException e) {
+  } on NoSuchMethodException catch (e) {
     exception = e;
   }
   Expect.isNotNull(exception);
 
   var b = makeB();
   Expect.equals(42, b.foo());
 }