[lldb][test] Skip some lldb-server tests on Windows

These are known to return errors occasionaly on our Windows on Arm
bot.

Author: DavidSpickett

lldb/test/API/tools/lldb-server/TestGdbRemoteLaunch.py

@@ -58,6 +58,7 @@ def test_launch_via_vRun(self):
         self.assertEqual(context["O_content"], b"arg1\r\narg2\r\narg3\r\n")
 
     @add_test_categories(["llgs"])
+    @skipIfWindows  # Sometimes returns '$E1f'.
     def test_launch_via_vRun_no_args(self):
         self.build()
         server = self.connect_to_debug_monitor()

lldb/test/API/tools/lldb-server/TestLldbGdbServer.py

@@ -468,6 +468,7 @@ def test_Hg_fails_on_zero_pid(self):
         self.Hg_fails_on_pid(0)
 
     @add_test_categories(["llgs"])
+    @skipIfWindows  # Sometimes returns '$E37'.
     def test_Hg_fails_on_minus_one_pid(self):
         self.build()
         self.set_inferior_startup_launch()

lldb/test/API/tools/lldb-server/TestNonStop.py

@@ -276,6 +276,7 @@ def test_multiple_vCont(self):
         self.expect_gdbremote_sequence()
 
     @add_test_categories(["llgs"])
+    @skipIfWindows  # Sometimes results in '$E37' instead of expected '$OK'
     def test_vCont_then_stop(self):
         self.build()
         self.set_inferior_startup_launch()