Rename "install" -> "get" and "update" -> "upgrade".

sdk/lib/_internal/pub/test/version_solver_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.
 
-library pub_update_test;
+library pub_upgrade_test;
 
 import 'dart:async';
 
 import 'package:unittest/unittest.dart';
 
 import '../lib/src/lock_file.dart';
 import '../lib/src/log.dart' as log;
 import '../lib/src/package.dart';
 import '../lib/src/pubspec.dart';
 import '../lib/src/sdk.dart' as sdk;
@@ skipping 1107 matching lines @@
         throw new Exception('Pubspec for $id was already requested.');
       }
 
       _requestedPubspecs.putIfAbsent(id.description, () => new Set<Version>());
       _requestedPubspecs[id.description].add(id.version);
 
       return _packages[id.description][id.version].pubspec;
     });
   }
 
-  Future<bool> install(PackageId id, String path) {
+  Future<bool> get(PackageId id, String path) {
     throw new Exception('no');
   }
 
   void addPackage(String description, Package package) {
     _packages.putIfAbsent(description, () => new Map<Version, Package>());
     _packages[description][package.version] = package;
   }
 }
 
 Package mockPackage(String description, String version,
@@ skipping 44 matching lines @@
   var source = "mock1";
   var match = new RegExp(r"(.*) from (.*)").firstMatch(description);
   if (match != null) {
     name = match[1];
     source = match[2];
     if (source == "root") source = null;
   }
 
   callback(isDev, name, source);
 }