2 commits

Author	SHA1	Message	Date
Eric Holk	f364011955	Apply code review suggestions ... - use feature_err to report unstable expr_2021 - Update downlevel expr_2021 diagnostics Co-authored-by: León Orell Valerian Liehr <me@fmease.dev>	2024-05-13 11:55:38 -07:00
Eric Holk	ef6478ba5f	Add expr_2021 nonterminal and feature flag ... This commit adds a new nonterminal `expr_2021` in macro patterns, and `expr_fragment_specifier_2024` feature flag. For now, `expr` and `expr_2021` are treated the same, but in future PRs we will update `expr` to match to new grammar. Co-authored-by: Vincezo Palazzo <vincenzopalazzodev@gmail.com>	2024-05-13 11:27:26 -07:00