Mark analyzer_cli as strong-mode clean

pkg/analyzer_cli/lib/src/driver.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.driver;
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
@@ skipping 754 matching lines @@
         stdin.transform(UTF8.decoder).transform(new LineSplitter());
     cmdLine.listen((String line) {
       // Maybe finish.
       if (line.isEmpty) {
         var time = stopwatch.elapsedMilliseconds;
         outSink.writeln(
             '>>> BATCH END (${totalTests - testsFailed}/$totalTests) ${time}ms');
         exitCode = batchResult.ordinal;
       }
       // Prepare arguments.
-      var args;
-      {
-        var lineArgs = line.split(new RegExp('\\s+'));
-        args = new List<String>();
-        args.addAll(sharedArgs);
-        args.addAll(lineArgs);
-        args.remove('-b');
-        args.remove('--batch');
-      }
+      var lineArgs = line.split(new RegExp('\\s+'));
+      var args = new List<String>();
+      args.addAll(sharedArgs);
+      args.addAll(lineArgs);
+      args.remove('-b');
+      args.remove('--batch');
       // Analyze single set of arguments.
       try {
         totalTests++;
         ErrorSeverity result = handler(args);
         bool resultPass = result != ErrorSeverity.ERROR;
         if (!resultPass) {
           testsFailed++;
         }
         batchResult = batchResult.max(result);
         // Write stderr end token and flush.
@@ skipping 40 matching lines @@
     for (var package in packages) {
       var packageName = path.basename(package.path);
       var realPath = package.resolveSymbolicLinksSync();
       result[packageName] = [
         PhysicalResourceProvider.INSTANCE.getFolder(realPath)
       ];
     }
     return result;
   }
 }