[Gardening] Disable running strong-mode analyzer tests in code that is not strong mode clean

runtime/tests/vm/vm.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.
 
 # Issue 28198
 cc/IsolateReload_PendingUnqualifiedCall_InstanceToStatic: Fail, Crash, Timeout
 cc/IsolateReload_PendingUnqualifiedCall_StaticToInstance: Fail, Crash, Timeout
 cc/IsolateReload_PendingConstructorCall_AbstractToConcrete: Fail, Crash, Timeout
 cc/IsolateReload_PendingConstructorCall_ConcreteToAbstract: Fail, Crash, Timeout
 cc/IsolateReload_PendingStaticCall_DefinedToNSM: Fail, Crash, Timeout
@@ skipping 153 matching lines @@
 
 [ $arch == mips ]
 cc/Int8ListLengthMaxElements: Skip # Issue 23536, uses 1 GB memory.
 
 [ $arch == mips && $mode == debug ]
 cc/FindCodeObject: SkipSlow # Takes more than 8 minutes. Issue 17440
 
 [ $compiler == dart2analyzer ]
 dart/optimized_stacktrace_test: StaticWarning
 
+[ $compiler == dart2analyzer && $builder_tag == strong ]
+*: Skip # Issue 28649
+
 [ $compiler == app_jit ]
 dart/snapshot_version_test: Fail,OK # Expects to find script snapshot relative to Dart source.
 
 [ $runtime != vm ]
 dart/snapshot_version_test: SkipByDesign  # Spawns processes
 dart/spawn_infinite_loop_test: Skip  # VM shutdown test
 dart/spawn_shutdown_test: Skip  # VM Shutdown test
 dart/hello_fuchsia_test: SkipByDesign # This is a test for fuchsia OS
 
 [ ($runtime == vm || $runtime == dart_precompiled) && $mode == debug && $builder_tag == asan ]
@@ skipping 109 matching lines @@
 cc/UseDartApi: Pass,Crash # Issue 28499
 
 [ $hot_reload || $hot_reload_rollback ]
 dart/spawn_shutdown_test: Skip # We can shutdown an isolate before it reloads.
 dart/spawn_infinite_loop_test: Skip # We can shutdown an isolate before it reloads.
 
 [ $arch == simdbc  || $arch == simdbc64 ]
 cc/Debugger_RewindOneFrame_Unoptimized: Skip # Issue 27878
 cc/Debugger_RewindTwoFrames_Unoptimized: Skip # Issue 27878
 cc/Debugger_Rewind_Optimized: Skip # Issue 27878