[dartdevc] Skip all tests on DDC for extension methods

We expect to turn down DDC in favor of DDK before shipping extension methods so
they will never be implemented.

Change-Id: I4f4ddfbf37ccec965d53b21eac9223e75b87d93c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/112420
Reviewed-by: Vijay Menon <vsm@google.com>
Commit-Queue: Nicholas Shahan <nshahan@google.com>

Author: nshahan

tests/co19_2/co19_2-dart2js.status

@@ -2,6 +2,9 @@
 # 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 == dartdevc ]
+LanguageFeatures/Extension-methods/*: SkipByDesign # Analyzer DDC is expected to be turned down before releasing extension methods.
+
 [ $compiler == dart2js && $runtime == d8 ]
 LayoutTests/*: SkipByDesign # d8 is not a browser
 LibTest/html/*: SkipByDesign # d8 is not a browser

tests/language_2/language_2_dartdevc.status

@@ -40,6 +40,7 @@ enum_syntax_test/06: MissingCompileTimeError
 execute_finally6_test: RuntimeError # Issue 29920
 expect_test: RuntimeError # Issue 29920
 export_private_test/01: MissingCompileTimeError # Issue 29920
+extension_methods/*: SkipByDesign # Analyzer DDC is expected to be turned down before releasing extension methods.
 f_bounded_quantification2_test: CompileTimeError # Issue 34583
 f_bounded_quantification3_test: RuntimeError # Issue 29920
 f_bounded_quantification4_test: CompileTimeError # Issue 34583