message: Skip TestGdbserverPort.test on Windows
  lldb/cmake/modules/LLDBConfig.cmake does not build lldb-server on Windows:
  if (CMAKE_SYSTEM_NAME MATCHES "Android|Darwin|FreeBSD|Linux|NetBSD")
  set(LLDB_CAN_USE_LLDB_SERVER 1)
  Also do not append 'platform' parameter twice - although that was quietly
  ignored.
diff: -# RUN: %platformserver p --server --listen :1234 --min-gdbserver-port 1234 --max-gdbserver-port 1234 2>&1 | FileCheck %s
  +# Windows does not build lldb-server.
  +# UNSUPPORTED: system-windows
  +# RUN: %platformserver --server --listen :1234 --min-gdbserver-port 1234 --max-gdbserver-port 1234 2>&1 | FileCheck %s
  # CHECK: error: --min-gdbserver-port (1234) is not lower than --max-gdbserver-port (1234)
  