[llvm-symbolizer] Place Mach-O options into the Mach-O option group.

[gbreynoo]

Summary

In the help output of other tools and in the symbolizer command guide, Mach-o specific options are in their own section. This change fixes the symbolizer help output to be consistent.

[MaskRay]

Macho/MachO -> Mach-O

[gbreynoo]

Thanks Maskray, fixed spelling .

[MaskRay]

Mach-o help options should match command guide

Place Mach-O options into the Mach-O option group.

llvm/tools/llvm-symbolizer/Opts.td

17

Mach-o -> Mach-O

llvm/tools/llvm-symbolizer/Opts.td

 include "llvm/Option/OptParser.td"
 
 multiclass B<string name, string help1, string help2> {
   def NAME: Flag<["--", "-"], name>, HelpText<help1>;
   def no_ # NAME: Flag<["--", "-"], "no-" # name>, HelpText<help2>;
 }
 
 multiclass Eq<string name, string help> {
   def NAME #_EQ : Joined<["--", "-"], name #"=">,
                   HelpText<help>;
   def : Separate<["--", "-"], name>, Alias<!cast<Joined>(NAME #_EQ)>;
 }
 
 class F<string name, string help>: Flag<["--", "-"], name>, HelpText<help>;
 
+def grp_mach_o : OptionGroup<"kind">,
+                 HelpText<"llvm-symbolizer MachO Specific Options">;
+
 def addresses : F<"addresses", "Show address before line information">;
 defm adjust_vma
     : Eq<"adjust-vma", "Add specified offset to object file addresses">,
       MetaVarName<"<offset>">;
 def basenames : Flag<["--"], "basenames">, HelpText<"Strip directory names from paths">;
 defm debug_file_directory : Eq<"debug-file-directory", "Path to directory where to look for debug files">, MetaVarName<"<dir>">;
-defm default_arch : Eq<"default-arch", "Default architecture (for multi-arch objects)">;
+defm default_arch
+    : Eq<"default-arch", "Default architecture (for multi-arch objects)">,
+      Group<grp_mach_o>;
 defm demangle : B<"demangle", "Demangle function names", "Don't demangle function names">;
 def functions : F<"functions", "Print function name for a given address">;
 def functions_EQ : Joined<["--"], "functions=">, HelpText<"Print function name for a given address">, Values<"none,short,linkage">;
 def help : F<"help", "Display this help">;
 defm dwp : Eq<"dwp", "Path to DWP file to be use for any split CUs">, MetaVarName<"<file>">;
-defm dsym_hint : Eq<"dsym-hint", "Path to .dSYM bundles to search for debug info for the object files">, MetaVarName<"<dir>">;
+defm dsym_hint
+    : Eq<"dsym-hint",
+         "Path to .dSYM bundles to search for debug info for the object files">,
+      MetaVarName<"<dir>">,
+      Group<grp_mach_o>;
 defm fallback_debug_path : Eq<"fallback-debug-path", "Fallback path for debug binaries">, MetaVarName<"<dir>">;
 defm inlines : B<"inlines", "Print all inlined frames for a given address",
                  "Do not print inlined frames">;
 defm obj
     : Eq<"obj", "Path to object file to be symbolized (if not provided, "
                 "object file should be specified for each input line)">, MetaVarName<"<file>">;
 defm output_style
     : Eq<"output-style", "Specify print style. Supported styles: LLVM, GNU">,