Implement type arguments in redirecting factories.

pkg/front_end/messages.yaml

 # Copyright (c) 2017, 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.
 
 # Each entry in this map corresponds to a diagnostic message. Ideally, each
 # entry contains three parts:
 #
 # 1. A message template (template).
 #
 # 2. A suggestion for how to correct the problem (tip).
@@ skipping 460 matching lines @@
 
 FinalFieldWithoutInitializer:
   template: "A 'final' field must be initialized."
   tip: "Try adding '= <initializer>'."
   dart2jsCode: "*ignored*"
 
 MetadataTypeArguments:
   template: "An annotation (metadata) can't use type arguments."
   dart2jsCode: "*ignored*"
 
+ClassNotFound:
+  template: "Couldn't find a class named '#name'."
+
 ConstructorNotFound:
-  template: "Couldn't find constructor '#name'."
+  template: "Couldn't find a constructor named '#name'."
+
+NotAConstructor:
+  template: "'#name' isn't a constructor."
 
 RedirectionTargetNotFound:
   template: "Redirection constructor target not found: '#name'"
 
 CyclicTypedef:
   template: "The typedef '#name' has a reference to itself."
 
 TypeNotFound:
   template: "Type '#name' not found."
 
@@ skipping 418 matching lines @@
 PackageNotFound:
   template: "Could not resolve the package '#name' in '#uri'."
 
 InvalidPackageUri:
   template: "Invalid package Uri '#uri':\n  #string."
 
 IntegerLiteralIsOutOfRange:
   template: "The integer literal #lexeme can't be represented in 64 bits."
   tip: "Try using BigInt (from 'dart:typed_data' library) if you need an integer larger than 9,223,372,036,854,775,807 or less than -9,223,372,036,854,775,808."