[clang] [clang-tools-extra] [lld] [llvm] [llvm] Add subcommand support for OptTable (PR #155026)

[via cfe-commits]

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@@ -179,6 +228,8 @@ class LLVM_ABI OptTable {
   /// Return the string table used for option names.
   const StringTable &getStrTable() const { return *StrTable; }
 
+  const ArrayRef<SubCommand> getSubCommands() const { return SubCommands; }
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PiJoules wrote:

`ArrayRef` is already immutable so `const` might not be needed here.

https://github.com/llvm/llvm-project/pull/155026