[PATCH] D35782: [C++2a][Preprocessor] Implement p0306 __VA_OPT__ (Comma omission and comma deletion)

[David Majnemer via Phabricator via cfe-commits]

majnemer added inline comments.


================
Comment at: include/clang/Lex/TokenLexer.h:169
+  bool PasteTokens(Token &Tok,
+                   llvm::ArrayRef<Token> AltTokens = llvm::ArrayRef<Token>(),
+                   unsigned int *const AltCurTokenIdx = nullptr);
----------------
I think `llvm::ArrayRef<Token>()` can just be `llvm::None`.


Repository:
  rL LLVM

https://reviews.llvm.org/D35782



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