+ SmallVectorImpl<const char *> &Argv,
+ bool MarkEOLs = false);
+
+/// \brief Mark all options not part of this category as cl::ReallyHidden.
+///
+/// \param Category the category of options to keep displaying
+///
+/// Some tools (like clang-format) like to be able to hide all options that are
+/// not specific to the tool. This function allows a tool to specify a single
+/// option category to display in the -help output.
+void HideUnrelatedOptions(cl::OptionCategory &Category);
+
+/// \brief Mark all options not part of the categories as cl::ReallyHidden.
+///
+/// \param Categories the categories of options to keep displaying.
+///
+/// Some tools (like clang-format) like to be able to hide all options that are
+/// not specific to the tool. This function allows a tool to specify a single
+/// option category to display in the -help output.
+void HideUnrelatedOptions(ArrayRef<const cl::OptionCategory *> Categories);
+
+/// \brief Adds a new option for parsing and provides the option it refers to.
+///
+/// \param O pointer to the option
+/// \param Name the string name for the option to handle during parsing
+///
+/// Literal options are used by some parsers to register special option values.
+/// This is how the PassNameParser registers pass names for opt.
+void AddLiteralOption(Option &O, const char *Name);