Issue 28100. Implement new strong mode instantiate to bound rules in analyzer.

pkg/analyzer/lib/src/error/codes.dart

 // Copyright (c) 2014, 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.src.error.codes;
 
 import 'package:analyzer/error/error.dart';
 
 export 'package:analyzer/src/analysis_options/error/option_codes.dart';
 export 'package:analyzer/src/dart/error/hint_codes.dart';
@@ skipping 4886 matching lines @@
       'IMPLICIT_DYNAMIC_INVOKE',
       "Missing type arguments for calling generic function type '{0}'.",
       _implicitDynamicCorrection);
 
   static const StrongModeCode NOT_INSTANTIATED_BOUND = const StrongModeCode(
       ErrorType.COMPILE_TIME_ERROR,
       'NOT_INSTANTIATED_BOUND',
       "Type parameter bound types must be instantiated.",
       "Try adding type arguments.");
 
+  static const StrongModeCode UNABLE_INSTANTIATE_TO_BOUNDS =
+      const StrongModeCode(
+          ErrorType.COMPILE_TIME_ERROR,
+          'UNABLE_INSTANTIATE_TO_BOUNDS',
+          "Unable to instantiate to bounds.",

[Leaf, 2017/01/20 20:31:52]

Maybe "Type has no default bounds", "Try adding explicit type parameters to
type"?

[scheglov, 2017/01/21 02:11:23]

Done.

+          "Try adding type arguments.");
+
   static const StrongModeCode UNSAFE_BLOCK_CLOSURE_INFERENCE = const StrongModeCode(
       ErrorType.STATIC_WARNING,
       'UNSAFE_BLOCK_CLOSURE_INFERENCE',
       "Unsafe use of a block closure in a type-inferred variable outside a function body.",
       "Try adding a type annotation for '{0}'. See dartbug.com/26947.");
 
   @override
   final ErrorType type;
 
   /**
    * Initialize a newly created error code to have the given [type] and [name].
    *
    * The message associated with the error will be created from the given
    * [message] template. The correction associated with the error will be
    * created from the optional [correction] template.
    */
   const StrongModeCode(ErrorType type, String name, String message,
       [String correction])
       : type = type,
         super('STRONG_MODE_$name', message, correction);
 
   @override
   ErrorSeverity get errorSeverity => type.severity;
 }