Add '--dart-sdk-summary' option to analyzer-cli and use SummaryBasedDartSdk.

pkg/analyzer_cli/lib/src/options.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.
 
 library analyzer_cli.src.options;
 
 import 'dart:io';
 
 import 'package:analyzer_cli/src/driver.dart';
 import 'package:args/args.dart';
@@ skipping 50 matching lines @@
 
   /// The path to output the summary when creating summaries in build mode.
   final String buildSummaryOutput;
 
   /// Whether to output a summary in "fallback mode".
   final bool buildSummaryFallback;
 
   /// Whether to suppress a nonzero exit code in build mode.
   final bool buildSuppressExitCode;
 
-  /// The path to the dart SDK
+  /// The path to the dart SDK.
   String dartSdkPath;
 
+  /// The path to the dart SDK summary file.
+  String dartSdkSummaryPath;
+
   /// A table mapping the names of defined variables to their values.
   final Map<String, String> definedVariables;
 
   /// Whether to report hints
   final bool disableHints;
 
   /// Whether to display version information
   final bool displayVersion;
 
   /// Whether to enable null-aware operators (DEP 9).
@@ skipping 68 matching lines @@
         buildSummaryFallback = args['build-summary-fallback'],
         buildSummaryInputs = args['build-summary-input'],
         buildSummaryOnly = args['build-summary-only'],
         buildSummaryOnlyAst = args['build-summary-only-ast'],
         buildSummaryOnlyDiet = args['build-summary-only-diet'],
         buildSummaryExcludeInformative =
             args['build-summary-exclude-informative'],
         buildSummaryOutput = args['build-summary-output'],
         buildSuppressExitCode = args['build-suppress-exit-code'],
         dartSdkPath = args['dart-sdk'],
+        dartSdkSummaryPath = args['dart-sdk-summary'],
         definedVariables = definedVariables,
         analysisOptionsFile = args['options'],
         disableHints = args['no-hints'],
         displayVersion = args['version'],
         enableNullAwareOperators = args['enable-null-aware-operators'],
         enableStrictCallChecks = args['enable-strict-call-checks'],
         enableSuperMixins = args['supermixin'],
         enableTypeChecks = args['enable_type_checks'],
         hintsAreFatal = args['fatal-hints'],
         ignoreUnrecognizedFlags = args['ignore-unrecognized-flags'],
@@ skipping 94 matching lines @@
     }
 
     args = args.expand((String arg) => arg.split('=')).toList();
     var parser = new CommandLineParser()
       ..addFlag('batch',
           abbr: 'b',
           help: 'Read commands from standard input (for testing).',
           defaultsTo: false,
           negatable: false)
       ..addOption('dart-sdk', help: 'The path to the Dart SDK.')
+      ..addOption('dart-sdk-summary',
+          help: 'The path to the Dart SDK summary file.', hide: true)
       ..addOption('packages',
           help:
               'Path to the package resolution configuration file, which supplies '
               'a mapping of package names to paths.  This option cannot be '
               'used with --package-root.')
       ..addOption('package-root',
           abbr: 'p',
           help: 'Path to a package root directory (deprecated). This option '
               'cannot be used with --packages.')
       ..addOption('options', help: 'Path to an analysis options file.')
@@ skipping 381 matching lines @@
 
   int _getNextFlagIndex(args, i) {
     for (; i < args.length; ++i) {
       if (args[i].startsWith('--')) {
         return i;
       }
     }
     return i;
   }
 }