Stop creating selectors in the SSA builder that were already created by the resolver.

sdk/lib/_internal/compiler/implementation/warnings.dart

 // Copyright (c) 2011, 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.
 
 part of dart2js;
 
 class MessageKind {
   final String template;
   const MessageKind(this.template);
 
@@ skipping 197 matching lines @@
   static const DUPLICATE_EXTENDS_IMPLEMENTS = const MessageKind(
       "Error: #{type} can not be both extended and implemented.");
 
   static const DUPLICATE_IMPLEMENTS = const MessageKind(
       "Error: #{type} must not occur more than once "
       "in the implements clause.");
 
   static const ILLEGAL_SUPER_SEND = const MessageKind(
       "#{name} cannot be called on super");
 
+  static const NO_SUCH_SUPER_MEMBER = const MessageKind(
+      "Cannot resolve #{memberName} in a superclass of #{className}");
+
   static const ADDITIONAL_TYPE_ARGUMENT = const MessageKind(
       "additional type argument");
 
   static const MISSING_TYPE_ARGUMENT = const MessageKind(
       "missing type argument");
 
   // TODO(johnniwinther): Use ADDITIONAL_TYPE_ARGUMENT or MISSING_TYPE_ARGUMENT
   // instead.
   static const TYPE_ARGUMENT_COUNT_MISMATCH = const MessageKind(
       "incorrect number of type arguments on #{type}");
@@ skipping 103 matching lines @@
 
   static const PARAMETER_NAME_EXPECTED = const MessageKind(
       "Error: parameter name expected.");
 
   static const CANNOT_RESOLVE_GETTER = const MessageKind(
       'cannot resolve getter.');
 
   static const CANNOT_RESOLVE_SETTER = const MessageKind(
       'cannot resolve setter.');
 
+  static const CANNOT_RESOLVE_INDEX = const MessageKind(
+      'cannot resolve [] member.');
+
   static const VOID_NOT_ALLOWED = const MessageKind(
       'type void is only allowed in a return type.');
 
   static const BEFORE_TOP_LEVEL = const MessageKind(
       'Error: part header must come before top-level definitions.');
 
   static const LIBRARY_NAME_MISMATCH = const MessageKind(
       'Warning: expected part of library name "#{libraryName}".');
 
   static const MISSING_PART_OF_TAG = const MessageKind(
@@ skipping 213 matching lines @@
 
 class CompileTimeConstantError extends Diagnostic {
   CompileTimeConstantError(MessageKind kind, [Map arguments = const {}])
     : super(kind, arguments);
 }
 
 class CompilationError extends Diagnostic {
   CompilationError(MessageKind kind, [Map arguments = const {}])
     : super(kind, arguments);
 }