message: Add initialization of the Swift runtime to Windows
  Swift builds and runs on Windows now and the LanguageRuntime and
  Language subclasses are necessary to properly debug executables.
diff: #include "lldb/Host/windows/windows.h"
  #endif
  -#if defined(__APPLE__) || defined(__linux__)
  +#if defined(__APPLE__) || defined(__linux__) || defined(_WIN32)
  #include "Plugins/Language/Swift/SwiftLanguage.h"
  #include "lldb/Target/SwiftLanguageRuntime.h"
  #endif
  @@ -271,14 +271,14 @@ SystemInitializerFull::SystemInitializerFull() {}
  SystemInitializerFull::~SystemInitializerFull() {}
  static void SwiftInitialize() {
  -#if defined(__APPLE__) || defined(__linux__)
  +#if defined(__APPLE__) || defined(__linux__) || defined(_WIN32)
  SwiftLanguage::Initialize();
  SwiftLanguageRuntime::Initialize();
  #endif
  }
  static void SwiftTerminate() {
  -#if defined(__APPLE__) || defined(__linux__)
  +#if defined(__APPLE__) || defined(__linux__) || defined(_WIN32)
  SwiftLanguage::Terminate();
  SwiftLanguageRuntime::Terminate();
  #endif
  