Make List.from and Iterable.toList default to not growable.

sdk/lib/_internal/compiler/implementation/mirrors/dart2js_mirror.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 mirrors_dart2js;
 
 import 'dart:async';
 import 'dart:collection' show LinkedHashMap;
 import 'dart:io';
 import 'dart:uri';
@@ skipping 260 matching lines @@
                      [Path packageRoot, List<String> opts = const <String>[]])
       : cwd = getCurrentDirectory(),
         provider = new SourceFileProvider() {
     var libraryUri = cwd.resolve(libraryRoot.toString());
     var packageUri;
     if (packageRoot != null) {
       packageUri = cwd.resolve(packageRoot.toString());
     } else {
       packageUri = libraryUri;
     }
-    opts = new List<String>.from(opts, growable: true);
+    opts = new List<String>.from(opts);
     opts.add('--analyze-only');
     opts.add('--analyze-all');
     _compiler = new Compiler(provider.readStringFromUri,
-                             null,
-                             silentDiagnosticHandler,
-                             libraryUri, packageUri, opts);
+                                 null,
+                                 silentDiagnosticHandler,
+                                 libraryUri, packageUri, opts);
     var librariesUri = <Uri>[];
     for (Path library in libraries) {
       librariesUri.add(cwd.resolve(library.toString()));
       // TODO(johnniwinther): Detect file not found
     }
     _compiler.librariesToAnalyzeWhenRun = librariesUri;
     _compiler.run(null);
   }
 
   MirrorSystem get mirrors => new Dart2JsMirrorSystem(_compiler);
@@ skipping 1435 matching lines @@
       return new Future.immediate(
           new Dart2JsStringConstantMirror.fromString(mirrors, text));
     } else if (fieldName == 'trimmedText') {
       return new Future.immediate(
           new Dart2JsStringConstantMirror.fromString(mirrors, trimmedText));
     }
     // TODO(johnniwinther): Which exception/error should be thrown here?
     throw new UnsupportedError('InstanceMirror does not have a reflectee');
   }
 }