rustc_errors: let `DiagnosticBuilder::emit` return a "guarantee of emission".

1 files changed, 5 insertions, 2 deletions

diff --git a/compiler/rustc_parse/src/parser/stmt.rs b/compiler/rustc_parse/src/parser/stmt.rs
index bbd24289b15..6b195285243 100644
--- a/compiler/rustc_parse/src/parser/stmt.rs
+++ b/compiler/rustc_parse/src/parser/stmt.rs
@@ -18,7 +18,7 @@ use rustc_ast::{
 };
 use rustc_ast::{Block, BlockCheckMode, Expr, ExprKind, Local, Stmt};
 use rustc_ast::{StmtKind, DUMMY_NODE_ID};
-use rustc_errors::{Applicability, DiagnosticBuilder, PResult};
+use rustc_errors::{Applicability, DiagnosticBuilder, ErrorReported, PResult};
 use rustc_span::source_map::{BytePos, Span};
 use rustc_span::symbol::{kw, sym};
 
@@ -414,7 +414,10 @@ impl<'a> Parser<'a> {
         Ok(block)
     }
 
-    fn error_block_no_opening_brace_msg(&mut self, msg: &str) -> DiagnosticBuilder<'a> {
+    fn error_block_no_opening_brace_msg(
+        &mut self,
+        msg: &str,
+    ) -> DiagnosticBuilder<'a, ErrorReported> {
         let sp = self.token.span;
         let mut e = self.struct_span_err(sp, msg);
         let do_not_suggest_help = self.token.is_keyword(kw::In) || self.token == token::Colon;