Merge pull request swiftlang#11708 from tshortli/disable-dap-commands-on-windows

[stable/21.x][lldb] Disable a `TestDAP_commands` test on Windows

Author: al45tair

lldb/test/API/tools/lldb-dap/commands/TestDAP_commands.py

@@ -7,6 +7,7 @@
 
 
 class TestDAP_commands(lldbdap_testcase.DAPTestCaseBase):
+    @skipIfWindows	# rdar://163316257
     def test_command_directive_quiet_on_success(self):
         program = self.getBuildArtifact("a.out")
         command_quiet = (