Skip all dart:wasm tests

Bug: #37882
Change-Id: I8f6c3f9b8d69a43ef6382a3d07579ea14d335c35
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/119173
Commit-Queue: Liam Appelbe <[email protected]>
Reviewed-by: Alexander Markov <[email protected]>

Author: liamappelbe

tests/lib_2/lib_2.status

@@ -2,6 +2,7 @@
 # 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.
 html/cross_frame_test: Skip # Issue 32039, test reloads itself (not by design - investigate)
+wasm/*: Skip # dart:wasm is currently behind a Dart SDK build flag.
 
 [ $arch == simarm64 ]
 convert/utf85_test: Skip # Pass, Slow Issue 20111.