Revert "Reapply "Implement new model for class members." and "Implement new model for interface mem…

tests/compiler/dart2js/missing_file_test.dart

 // Copyright (c) 2013, 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 the compiler can handle imports when package root has not been set.
 
 library dart2js.test.missing_file;
 
 import 'package:expect/expect.dart';
 import "package:async_helper/async_helper.dart";
 import 'memory_source_file_helper.dart';
 
 import '../../../sdk/lib/_internal/compiler/implementation/dart2jslib.dart'
        show NullSink;
 
 import '../../../sdk/lib/_internal/compiler/compiler.dart'
        show DiagnosticHandler, Diagnostic;
 
 import 'dart:async';
 
+import '../../../sdk/lib/_internal/compiler/implementation/mirrors/mirrors.dart';
+import '../../../sdk/lib/_internal/compiler/implementation/mirrors/dart2js_mirror.dart';
+
 const MEMORY_SOURCE_FILES = const {
   'main.dart': '''
 
 import 'foo.dart';
 
 main() {}
 ''',
 };
 
 void runCompiler(Uri main, String expectedMessage) {
@@ skipping 36 matching lines @@
 void main() {
   runCompiler(Uri.parse('memory:main.dart'),
               "Error: Can't read 'memory:foo.dart' "
               "(Exception: No such file memory:foo.dart).");
   runCompiler(Uri.parse('memory:foo.dart'),
               "Error: Can't read 'memory:foo.dart' "
               "(Exception: No such file memory:foo.dart).");
   runCompiler(Uri.parse('dart:foo'),
               "Error: Library not found 'dart:foo'.");
 }