Auto merge of #50307 - petrochenkov:keyhyg2, r=nikomatsakis

Implement edition hygiene for keywords

Determine "keywordness" of an identifier in its hygienic context.
cc https://github.com/rust-lang/rust/pull/49611

I've resurrected `proc` as an Edition-2015-only keyword for testing purposes, but it should probably be buried again. EDIT: `proc` is removed again.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/libsyntax/test.rs b/src/libsyntax/test.rs
index 1734692f9e7..1dfd48a24c3 100644
--- a/src/libsyntax/test.rs
+++ b/src/libsyntax/test.rs
@@ -29,7 +29,7 @@ use entry::{self, EntryPointType};
 use ext::base::{ExtCtxt, Resolver};
 use ext::build::AstBuilder;
 use ext::expand::ExpansionConfig;
-use ext::hygiene::{Mark, SyntaxContext};
+use ext::hygiene::{self, Mark, SyntaxContext};
 use fold::Folder;
 use feature_gate::Features;
 use util::move_map::MoveMap;
@@ -300,6 +300,7 @@ fn generate_test_harness(sess: &ParseSess,
             span: None,
             allow_internal_unstable: true,
             allow_internal_unsafe: false,
+            edition: hygiene::default_edition(),
         }
     });