minor: use minicore

1 files changed, 1 insertions, 4 deletions

diff --git a/crates/ide_completion/src/completions/dot.rs b/crates/ide_completion/src/completions/dot.rs
index 7f75d4298..286d7cb67 100644
--- a/crates/ide_completion/src/completions/dot.rs
+++ b/crates/ide_completion/src/completions/dot.rs
@@ -498,10 +498,7 @@ mod foo {
     fn issue_8931() {
         check(
             r#"
-#[lang = "fn_once"]
-trait FnOnce<Args> {
-    type Output;
-}
+//- minicore: fn
 struct S;
 
 struct Foo;