Merge SourceLocation and Source

tests/compiler/dart2js/mirrors_test.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.
 
 #import("../../../pkg/dartdoc/lib/mirrors.dart");
 #import("../../../pkg/dartdoc/lib/mirrors_util.dart");
 
 #import('dart:io');
 
 int count(Iterable iterable) {
@@ skipping 37 matching lines @@
   Expect.isNotNull(libraries, "No libraries map returned");
   Expect.isFalse(libraries.isEmpty, "Empty libraries map returned");
 
   var helperLibrary = libraries["mirrors_helper"];
   Expect.isNotNull(helperLibrary, "Library 'mirrors_helper' not found");
   Expect.stringEquals("mirrors_helper", helperLibrary.simpleName,
     "Unexpected library simple name");
   Expect.stringEquals("mirrors_helper", helperLibrary.qualifiedName,
     "Unexpected library qualified name");
 
+  var helperLibraryLocation = helperLibrary.location;
+  Expect.isNotNull(helperLibraryLocation);
+  Expect.equals(271, helperLibraryLocation.offset, "Unexpected offset");
+  Expect.equals(23, helperLibraryLocation.length, "Unexpected length");
+  Expect.equals(9, helperLibraryLocation.line, "Unexpected line");
+  Expect.equals(1, helperLibraryLocation.column, "Unexpected column");
+
+
   var classes = helperLibrary.classes;
   Expect.isNotNull(classes, "No classes map returned");
   Expect.isFalse(classes.isEmpty, "Empty classes map returned");
 
   testFoo(mirrors, helperLibrary, classes);
   testBar(mirrors, helperLibrary, classes);
   testBaz(mirrors, helperLibrary, classes);
   // TODO(johnniwinther): Add test of class [Boz] and typedef [Func].
   // TODO(johnniwinther): Add tests of type argument substitution, which
   // is not currently implemented in dart2js.
@@ skipping 703 matching lines @@
       privateClass.members['_PrivateClass._privateFactoryConstructor'];
   Expect.isNotNull(privateFactoryConstructor);
   Expect.isTrue(privateFactoryConstructor is MethodMirror);
   Expect.isTrue(privateFactoryConstructor.isConstructor);
   Expect.isTrue(privateFactoryConstructor.isPrivate);
   Expect.isFalse(privateFactoryConstructor.isConstConstructor);
   Expect.isFalse(privateFactoryConstructor.isRedirectingConstructor);
   Expect.isFalse(privateFactoryConstructor.isGenerativeConstructor);
   Expect.isTrue(privateFactoryConstructor.isFactoryConstructor);
 }