message: [lldb][NFC] Document options parameter in ClangUserExpression constructor
  Somehow this option was only documented in the swift branch.
diff: @@ -105,6 +105,9 @@ public:
  /// If not eResultTypeAny, the type to use for the expression
  /// result.
  ///
  + /// \param[in] options
  + /// Additional options for the expression.
  + ///
  /// \param[in] ctx_obj
  /// The object (if any) in which context the expression
  /// must be evaluated. For details see the comment to
  