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

tests/compiler/dart2js_foreign/native_method_rename3_test.dart

Index: tests/compiler/dart2js_foreign/native_method_rename3_test.dart
diff --git a/tests/compiler/dart2js_foreign/native_method_rename3_test.dart b/tests/compiler/dart2js_foreign/native_method_rename3_test.dart
index b576a7f0e02e8eddc3db801faad9580ceb848441..d0634e8c91f478ad97a8befcef7b27425a48df6e 100644
--- a/tests/compiler/dart2js_foreign/native_method_rename3_test.dart
+++ b/tests/compiler/dart2js_foreign/native_method_rename3_test.dart
@@ -90,7 +90,7 @@ expectNoSuchMethod(action, note) {
   bool caught = false;
   try {
     action();
-  } catch (NoSuchMethodException ex) {
+  } on NoSuchMethodException catch (ex) {
     caught = true;
     Expect.isTrue(ex is NoSuchMethodException, note);
   }