Issue 6823. Type variable bounds are type annotations, so there should be warning, not error.

tests/co19/co19-compiler.status

 # 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.
 
 [ $compiler == dartc ]
 Language/03_Overview/1_Scoping_A02_t05: Fail # TODO(analyzer-team): Please triage this failure.
 Language/03_Overview/1_Scoping_A02_t06: Fail # TODO(analyzer-team): Please triage this failure.
 Language/03_Overview/2_Privacy_A01_t04: Fail # TODO(analyzer-team): Please triage this failure.
 Language/03_Overview/2_Privacy_A01_t05: Fail # TODO(analyzer-team): Please triage this failure.
 Language/03_Overview/2_Privacy_A01_t09: Fail # TODO(analyzer-team): Please triage this failure.
@@ skipping 67 matching lines @@
 Language/13_Libraries_and_Scripts/1_Imports_A02_t05: Fail, OK
 Language/13_Libraries_and_Scripts/1_Imports_A02_t12: Fail, OK
 Language/13_Libraries_and_Scripts/1_Imports_A02_t13: Fail, OK
 Language/13_Libraries_and_Scripts/1_Imports_A02_t15: Fail, OK
 Language/13_Libraries_and_Scripts/1_Imports_A02_t18: Fail, OK
 Language/13_Libraries_and_Scripts/1_Imports_A02_t19: Fail, OK
 
 # issue 6822
 Language/13_Libraries_and_Scripts/1_Imports_A02_t24: Fail
 
-# issue 6823
-Language/13_Libraries_and_Scripts/1_Imports_A03_t06: Fail
-Language/13_Libraries_and_Scripts/1_Imports_A03_t26: Fail
-Language/13_Libraries_and_Scripts/1_Imports_A03_t46: Fail
-Language/13_Libraries_and_Scripts/1_Imports_A03_t66: Fail
-
 # co19 issue 324
 Language/13_Libraries_and_Scripts/2_Exports_A03_t01: Fail, OK
 Language/13_Libraries_and_Scripts/2_Exports_A03_t02: Fail, OK
 
 # issue 6824
 Language/13_Libraries_and_Scripts/2_Exports_A04_t02: Fail
 Language/13_Libraries_and_Scripts/2_Exports_A04_t05: Fail
 
 # issue 6825
 Language/13_Libraries_and_Scripts/2_Exports_A01_t17: Fail
@@ skipping 113 matching lines @@
 Language/07_Classes/6_Constructors/3_Constant_Constructors_A05_t02: Fail, OK
 Language/07_Classes/6_Constructors/3_Constant_Constructors_A05_t03: Fail, OK
 Language/07_Classes/6_Constructors/3_Constant_Constructors_A05_t01: Fail, OK
 Language/03_Overview/2_Privacy_A01_t11: Fail, OK
 Language/03_Overview/1_Scoping_A02_t28: Fail, OK
 Language/03_Overview/2_Privacy_A01_t18: Fail, OK
 Language/03_Overview/2_Privacy_A01_t08: Fail, OK
 
 [ $runtime == drt && ($compiler == none || $compiler == frog) ]
 *: Skip