[PATCH] D46234: Mark if a null statement is the result of constexpr folding

[Richard Smith - zygoloid via Phabricator via cfe-commits]

rsmith added a comment.

Can you say something about why you want to track this?

Perhaps we should just use a null pointer for the not-instantiated arm of an `if constexpr` instead, rather than tracking a flag on an empty statement that is meaningless for real empty statements.


Repository:
  rC Clang

https://reviews.llvm.org/D46234