Delete CPS IR

pkg/compiler/lib/src/dart2js.dart

 // Copyright (c) 2013, 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.cmdline;
 
 import 'dart:async' show EventSink, Future;
 import 'dart:convert' show UTF8, LineSplitter;
 import 'dart:io' show exit, File, FileMode, Platform, stdin, stderr;
 
@@ skipping 300 matching lines @@
       diagnosticHandler.showWarnings = false;
       passThrough(Flags.suppressWarnings);
     }),
     new OptionHandler(Flags.fatalWarnings, passThrough),
     new OptionHandler(
         Flags.suppressHints, (_) => diagnosticHandler.showHints = false),
     // TODO(sigmund): remove entirely after Dart 1.20
     new OptionHandler(
         '--output-type=dart|--output-type=dart-multi|--output-type=js',
         setOutputType),
-    new OptionHandler(Flags.useCpsIr, passThrough),
     new OptionHandler(Flags.noFrequencyBasedMinification, passThrough),
     new OptionHandler(Flags.verbose, setVerbose),
     new OptionHandler(Flags.version, (_) => wantVersion = true),
     new OptionHandler('--library-root=.+', setLibraryRoot),
     new OptionHandler('--out=.+|-o.*', setOutput, multipleArguments: true),
     new OptionHandler(Flags.allowMockCompilation, passThrough),
     new OptionHandler(Flags.fastStartup, passThrough),
     new OptionHandler(Flags.genericMethodSyntax, passThrough),
     new OptionHandler(Flags.initializingFormalAccess, passThrough),
     new OptionHandler('${Flags.minify}|-m', implyCompilation),
@@ skipping 347 matching lines @@
 
   --dump-info
     Generates an out.info.json file with information about the generated code.
     You can inspect the generated file with the viewer at:
         https://dart-lang.github.io/dump-info-visualizer/
 
   --generate-code-with-compile-time-errors
     Generates output even if the program contains compile-time errors. Use the
     exit code to determine if compilation failed.
 
-  --use-cps-ir
-    Experimental.  Use the new CPS based backend for code generation.
-
   --no-frequency-based-minification
     Experimental.  Disabled the new frequency based minifying namer and use the
     old namer instead.
 '''
       .trim());
 }
 
 void helpAndExit(bool wantHelp, bool wantVersion, bool verbose) {
   if (wantVersion) {
     var version = (BUILD_ID == null) ? '<non-SDK build>' : BUILD_ID;
@@ skipping 293 matching lines @@
   @override
   void close() {
     // Do nothing.
   }
 
   @override
   void addError(errorEvent, [StackTrace stackTrace]) {
     // Ignore
   }
 }