Don't get stuck in tuple exprs

1 files changed, 7 insertions, 0 deletions

diff --git a/crates/libsyntax2/tests/data/parser/err/0024_many_type_parens.rs b/crates/libsyntax2/tests/data/parser/err/0024_many_type_parens.rs
new file mode 100644
index 000000000..6c2e95c02
--- /dev/null
+++ b/crates/libsyntax2/tests/data/parser/err/0024_many_type_parens.rs
@@ -0,0 +1,7 @@
+fn f<T: (Copy) + (?Sized) + (for<'a> Trait<'a>)>() {}
+
+fn main() {
+    let _: Box<(Copy) + (?Sized) + (for<'a> Trait<'a>)>;
+    let _: Box<(?Sized) + (for<'a> Trait<'a>) + (Copy)>;
+    let _: Box<(for<'a> Trait<'a>) + (Copy) + (?Sized)>;
+}