Remove dart2jslib.dart

pkg/compiler/lib/src/typechecker.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.
 
 library dart2js.typechecker;
 
+import 'common/tasks.dart' show
+    CompilerTask;
+import 'compiler.dart' show
+    Compiler,
+    isPrivateName;
 import 'constants/expressions.dart';
 import 'constants/values.dart';
 import 'core_types.dart';
-import 'dart2jslib.dart' show
-    Compiler,
-    CompilerTask,
-    invariant,
-    isPrivateName;
 import 'dart_types.dart';
+import 'diagnostics/invariant.dart' show
+    invariant;
+import 'diagnostics/spannable.dart' show
+    Spannable;
 import 'elements/elements.dart' show
     AbstractFieldElement,
     AstElement,
     AsyncMarker,
     ClassElement,
     ConstructorElement,
     Element,
     Elements,
     EnumClassElement,
     ExecutableElement,
@@ skipping 15 matching lines @@
     TypedefElement,
     VariableElement;
 import 'messages.dart';
 import 'resolution/resolution.dart' show
     TreeElements;
 import 'resolution/class_members.dart' show
     MembersCreator;
 import 'tree/tree.dart';
 import 'util/util.dart' show
     Link,
-    LinkBuilder,
-    Spannable;
+    LinkBuilder;
 import '../compiler_new.dart' as api;
 
 class TypeCheckerTask extends CompilerTask {
   TypeCheckerTask(Compiler compiler) : super(compiler);
   String get name => "Type checker";
 
   void check(AstElement element) {
     if (element.isClass) return;
     if (element.isTypedef) return;
     ResolvedAst resolvedAst = element.resolvedAst;
@@ skipping 1857 matching lines @@
 
   visitTypedef(Typedef node) {
     // Do not typecheck [Typedef] nodes.
   }
 
   visitNode(Node node) {
     compiler.internalError(node,
         'Unexpected node ${node.getObjectDescription()} in the type checker.');
   }
 }