       Option.bypassBatchModeChecks,
       Option.candidateModuleFile,
       Option.checkOnoneCompleteness,
+      Option.clangTarget,
       Option.codeCompleteCallPatternHeuristics,
       Option.codeCompleteInitsInPostfixExpr,
       Option.colorDiagnostics,

  public static let lineRange: Option = Option("-line-range", .separate, attributes: [.noInteractive, .noBatch, .indent], metaVar: "<n:n>", helpText: "<start line>:<end line>. Formats a range of lines (1-based). Can only be used with one input file.", group: .codeFormatting)
  public static let linkObjcRuntime: Option = Option("-link-objc-runtime", .flag, attributes: [.doesNotAffectIncrementalBuild])
  public static let lldbRepl: Option = Option("-lldb-repl", .flag, attributes: [.helpHidden, .noBatch], helpText: "LLDB-enhanced REPL mode", group: .modes)
  public static let locale: Option = Option("-locale", .separate, attributes: [.frontend, .doesNotAffectIncrementalBuild], metaVar: "<locale-code>", helpText: "Choose a language for diagnostic messages")
  public static let localizationPath: Option = Option("-localization-path", .separate, attributes: [.frontend, .doesNotAffectIncrementalBuild, .argumentIsPath], metaVar: "<path>", helpText: "Path to localized diagnostic messages directory")
  public static let location: Option = Option("-location", .separate, attributes: [.noDriver], metaVar: "<location>", helpText: "Filter nodes with the given location.")

      Option.debugMapping,
      Option.debugMapping_,
      Option.debugPrefixMap,
      Option.debugRequirementMachine,
      Option.debugTimeExpressionTypeChecking,
      Option.debugTimeFunctionBodies,
      Option.debuggerSupport,
      Option.debuggerTestingTransform,
      Option.defineAvailability,
      Option.dependencyScanCachePath,
      Option.deprecatedIntegratedRepl,
      Option.deserializeDiff,
      Option.deserializeDiff_,
