[clang] [Clang][C++26] Implement Pack Indexing (P2662R3). (PR #72644)

[Erich Keane via cfe-commits]

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@@ -978,6 +978,20 @@ bool Parser::ConsumeAndStoreFunctionPrologue(CachedTokens &Toks) {
       } else {
         break;
       }
+      // Pack indexing
+      if (getLangOpts().CPlusPlus26 && Tok.is(tok::ellipsis) &&
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erichkeane wrote:

I'd suggested offline that we bring @ldionne in and see if he can make a case for doing so.  However, this IS somewhat of a 'breaking change' for a minor case, so we have to balance that.

https://github.com/llvm/llvm-project/pull/72644