Move pub into sdk/lib/_internal.

utils/pub/exit_codes.dart

Index: utils/pub/exit_codes.dart
diff --git a/utils/pub/exit_codes.dart b/utils/pub/exit_codes.dart
deleted file mode 100644
index fd39d15872e82c5e98edb86c3c2b4dd79f2e0fc2..0000000000000000000000000000000000000000
--- a/utils/pub/exit_codes.dart
+++ /dev/null
@@ -1,55 +0,0 @@
-// 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.
-
-/// Exit code constants. From [the BSD sysexits manpage][manpage]. Not every
-/// constant here is used, even though some of the unused ones may be
-/// appropriate for errors encountered by pub.
-///
-/// [manpage]: http://www.freebsd.org/cgi/man.cgi?query=sysexits
-library exit_codes;
-
-/// The command was used incorrectly.
-final USAGE = 64;
-
-/// The input data was incorrect.
-final DATA = 65;
-
-/// An input file did not exist or was unreadable.
-final NO_INPUT = 66;
-
-/// The user specified did not exist.
-final NO_USER = 67;
-
-/// The host specified did not exist.
-final NO_HOST = 68;
-
-/// A service is unavailable.
-final UNAVAILABLE = 69;
-
-/// An internal software error has been detected.
-final SOFTWARE = 70;
-
-/// An operating system error has been detected.
-final OS = 71;
-
-/// Some system file did not exist or was unreadable.
-final OS_FILE = 72;
-
-/// A user-specified output file cannot be created.
-final CANT_CREATE = 73;
-
-/// An error occurred while doing I/O on some file.
-final IO = 74;
-
-/// Temporary failure, indicating something that is not really an error.
-final TEMP_FAIL = 75;
-
-/// The remote system returned something invalid during a protocol exchange.
-final PROTOCOL = 76;
-
-/// The user did not have sufficient permissions.
-final NO_PERM = 77;
-
-/// Something was unconfigured or mis-configured.
-final CONFIG = 78;