Revert "Move dart2js from sdk/lib/_internal/compiler to pkg/compiler"

tests/compiler/dart2js/members_test.dart

Index: tests/compiler/dart2js/members_test.dart
diff --git a/tests/compiler/dart2js/members_test.dart b/tests/compiler/dart2js/members_test.dart
index d4be7ab42b24fb378c34e9526b33ea81e2d4d37d..bbba00e4cb640bde375e2295c986489eec73ccbd 100644
--- a/tests/compiler/dart2js/members_test.dart
+++ b/tests/compiler/dart2js/members_test.dart
@@ -7,11 +7,11 @@ library members_test;
 import 'package:expect/expect.dart';
 import "package:async_helper/async_helper.dart";
 import 'type_test_helper.dart';
-import 'package:compiler/src/dart_types.dart';
-import "package:compiler/src/elements/elements.dart"
+import 'package:compiler/implementation/dart_types.dart';
+import "package:compiler/implementation/elements/elements.dart"
        show Element, ClassElement, MemberSignature, Name, PublicName,
             DeclaredMember, Member;
-import "package:compiler/src/resolution/class_members.dart"
+import "package:compiler/implementation/resolution/class_members.dart"
   show DeclaredMember, ErroneousMember, SyntheticMember;
 
 void main() {