Nicholas Nethercote e2aa38e6ab Rework pattern and expression nonterminal kinds. ... Merge `PatParam`/`PatWithOr`, and `Expr`/`Expr2021`, for a few reasons. - It's conceptually nice, because the two pattern kinds and the two expression kinds are very similar. - With expressions in particular, there are several places where both expression kinds get the same treatment. - It removes one unreachable match arm. - Most importantly, for #124141 I will need to introduce a new type `MetaVarKind` that is very similar to `NonterminalKind`, but records a couple of extra fields for expression metavars. It's nicer to have a single `MetaVarKind::Expr` expression variant to hold those extra fields instead of duplicating them across two variants `MetaVarKind::{Expr,Expr2021}`. And then it makes sense for patterns to be treated the same way, and for `NonterminalKind` to also be treated the same way. I also clarified the comments, because I have long found them a little hard to understand.		2024-06-23 15:57:24 +10:00
..
src	Rework pattern and expression nonterminal kinds.	2024-06-23 15:57:24 +10:00
Cargo.toml	Move some tests from rustc_expand to rustc_parse.	2024-05-06 09:06:02 +10:00
messages.ftl	Move parse_or_use_outer_attributes out of parse_expr_prefix_range.	2024-06-19 19:12:00 +10:00