kernel->ssa: get simple constructors working

pkg/compiler/lib/src/elements/elements.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 elements;
 
 import '../common.dart';
 import '../common/resolution.dart' show Resolution;
 import '../compiler.dart' show Compiler;
 import '../constants/constructors.dart';
@@ skipping 219 matching lines @@
 
   /// `true` if this element is a generative or factory constructor.
   bool get isConstructor;
 
   /// `true` if this element is a generative constructor, potentially
   /// redirecting.
   bool get isGenerativeConstructor;
 
   /// `true` if this element is the body of a generative constructor.
   ///
-  /// This is a synthetic element kind used only be the JavaScript backend.
+  /// This is a synthetic element kind used only by the JavaScript backend.
   bool get isGenerativeConstructorBody;
 
   /// `true` if this element is a factory constructor,
   /// potentially redirecting.
   bool get isFactoryConstructor;
 
   /// `true` if this element is a local variable.
   bool get isVariable;
 
   /// `true` if this element is a top level variable, static or instance field.
@@ skipping 1672 matching lines @@
   /// by a field.
   bool get isDeclaredByField;
 
   /// Returns `true` if this member is abstract.
   bool get isAbstract;
 
   /// If abstract, [implementation] points to the overridden concrete member,
   /// if any. Otherwise [implementation] points to the member itself.
   Member get implementation;
 }