Remove AsyncError with Expando.

runtime/tests/vm/dart/isolate_mirror_local_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.
 //
 // Dart test program for checking implemention of MirrorSystem when
 // inspecting the current isolate.
 //
 // VMOptions=--enable_type_checks
 
 library isolate_mirror_local_test;
@@ skipping 460 matching lines @@
 }
 
 void testMirrorErrors(MirrorSystem mirrors) {
   LibraryMirror lib_mirror = mirrors.isolate.rootLibrary;
 
   lib_mirror.invokeAsync(const Symbol('methodWithException'), [])
     .then((InstanceMirror retval) {
       // Should not reach here.
       Expect.isTrue(false);
     })
-    .catchError((exc) {
-        Expect.isTrue(exc.error is MirroredUncaughtExceptionError);
+    .catchError((error) {
+        Expect.isTrue(error is MirroredUncaughtExceptionError);
         Expect.equals(const Symbol('MyException'),
-                      exc.error.exception_mirror.type.simpleName);
+                      error.exception_mirror.type.simpleName);
         Expect.equals('MyException: from methodWithException',
-                      exc.error.exception_string);
-        Expect.isTrue(exc.error.stacktrace.toString().contains(
+                      error.exception_string);
+        Expect.isTrue(error.stacktrace.toString().contains(
             'isolate_mirror_local_test.dart'));
         testDone('testMirrorErrors1');
       });
 
   lib_mirror.invokeAsync(const Symbol('methodWithError'), [])
     .then((InstanceMirror retval) {
       // Should not reach here.
       Expect.isTrue(false);
     })
-    .catchError((exc) {
-      Expect.isTrue(exc.error is MirroredCompilationError);
-      Expect.isTrue(exc.error.message.contains('unexpected token'));
+    .catchError((error) {
+      Expect.isTrue(error is MirroredCompilationError);
+      Expect.isTrue(error.message.contains('unexpected token'));
       testDone('testMirrorErrors2');
     });
 
   // TODO(turnidge): When we call a method that doesn't exist, we
   // should probably call noSuchMethod().  I'm adding this test to
   // document the current behavior in the meantime.
   lib_mirror.invokeAsync(const Symbol('methodNotFound'), [])
     .then((InstanceMirror retval) {
       // Should not reach here.
       Expect.isTrue(false);
     })
-    .catchError((exc) {
-      Expect.isTrue(exc.error is MirroredCompilationError);
-      Expect.isTrue(exc.error.message.contains(
+    .catchError((error) {
+      Expect.isTrue(error is MirroredCompilationError);
+      Expect.isTrue(error.message.contains(
           "did not find top-level function 'methodNotFound'"));
       testDone('testMirrorErrors3');
     });
 }
 
 void main() {
   // When all of the expected tests complete, the exit_port is closed,
   // allowing the program to terminate.
   exit_port = new ReceivePort();
   expectedTests = new Set<String>.from(['testRootLibraryMirror',
@@ skipping 11 matching lines @@
   // Test that an isolate can reflect on itself.
   mirrorSystemOf(exit_port.toSendPort()).then(testMirrorSystem);
 
   testIntegerInstanceMirror(reflect(1001));
   testStringInstanceMirror(reflect('This\nis\na\nString'));
   testBoolInstanceMirror(reflect(true));
   testNullInstanceMirror(reflect(null));
   testCustomInstanceMirror(reflect(new MyClass(17)));
   testMirrorErrors(currentMirrorSystem());
 }