Clean up package imports and library names

pkg/analyzer/test/src/task/strong/checker_test.dart

 // Copyright (c) 2015, 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.
 
 // TODO(jmesserly): this file needs to be refactored, it's a port from
 // package:dev_compiler's tests
 /// General type checking tests
-library test.src.task.strong.checker_test;
+library analyzer.test.src.task.strong.checker_test;
 
 import 'package:unittest/unittest.dart';
 
 import 'strong_test_helper.dart';
 
 void main() {
   testChecker('ternary operator', {
     '/main.dart': '''
         abstract class Comparable<T> {
           int compareTo(T other);
@@ skipping 2450 matching lines @@
 
         baz1() sync* { yield* (/*info:DYNAMIC_CAST*/x); }
         Iterable baz2() sync* { yield* (/*info:DYNAMIC_CAST*/x); }
         Iterable<int> baz3() sync* { yield* (/*warning:DOWN_CAST_COMPOSITE*/x); }
         Iterable<int> baz4() sync* { yield* new Iterable<int>(); }
         Iterable<int> baz5() sync* { yield* (/*info:INFERRED_TYPE_ALLOCATION*/new Iterable()); }
     '''
     });
   });
 }