Revert "Move dart2jslib parts into separate libraries."

pkg/compiler/lib/src/elements/elements.dart

Index: pkg/compiler/lib/src/elements/elements.dart
diff --git a/pkg/compiler/lib/src/elements/elements.dart b/pkg/compiler/lib/src/elements/elements.dart
index 79229a90ee55abfb45917da170ac6c754a4ad1c9..f55e198ed979ce0042002dec781ab7df7e338e6c 100644
--- a/pkg/compiler/lib/src/elements/elements.dart
+++ b/pkg/compiler/lib/src/elements/elements.dart
@@ -6,23 +6,33 @@ library elements;
 
 import '../constants/constructors.dart';
 import '../constants/expressions.dart';
-import '../dart_types.dart';
-import '../dart2jslib.dart' show
-    Backend,
-    Compiler,
-    isPrivateName,
-    SourceSpan;
-import '../diagnostic_listener.dart';
-import '../messages.dart' show MessageKind;
-import '../resolution/resolution.dart';
-import '../ordered_typeset.dart' show OrderedTypeSet;
-import '../scanner/scannerlib.dart' show
-    Token,
-    isUserDefinableOperator,
-    isMinusOperator;
-import '../script.dart';
 import '../tree/tree.dart';
 import '../util/util.dart';
+import '../resolution/resolution.dart';
+
+import '../dart2jslib.dart' show InterfaceType,
+                                 DartType,
+                                 TypeVariableType,
+                                 TypedefType,
+                                 DualKind,
+                                 MessageKind,
+                                 DiagnosticListener,
+                                 Script,
+                                 FunctionType,
+                                 Selector,
+                                 SourceSpan,
+                                 Constant,
+                                 Compiler,
+                                 Backend,
+                                 isPrivateName;
+
+import '../dart_types.dart';
+
+import '../scanner/scannerlib.dart' show Token,
+                                         isUserDefinableOperator,
+                                         isMinusOperator;
+
+import '../ordered_typeset.dart' show OrderedTypeSet;
 
 import 'visitor.dart' show ElementVisitor;