Auto merge of #64272 - Mark-Simulacrum:parallel-handler, r=estebank

Refactor librustc_errors::Handler API

This should be reviewed by-commit.

The last commit moves all fields into an inner struct behind a single lock; this is done to prevent possible deadlocks in a multi-threaded compiler, as well as inconsistent state observation.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libsyntax/parse/parser/expr.rs b/src/libsyntax/parse/parser/expr.rs
index 41c3747b950..d0c865a7b8e 100644
--- a/src/libsyntax/parse/parser/expr.rs
+++ b/src/libsyntax/parse/parser/expr.rs
@@ -777,7 +777,7 @@ impl<'a> Parser<'a> {
                         ex = ExprKind::Lit(literal);
                     }
                     Err(mut err) => {
-                        self.cancel(&mut err);
+                        err.cancel();
                         return Err(self.expected_expression_found());
                     }
                 }