Recover and suggest use `;` to construct array type

Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>

1 files changed, 11 insertions, 0 deletions

diff --git a/tests/ui/parser/issues/error-pattern-issue-50571.rs b/tests/ui/parser/issues/error-pattern-issue-50571.rs
new file mode 100644
index 00000000000..0c2ce6052cb
--- /dev/null
+++ b/tests/ui/parser/issues/error-pattern-issue-50571.rs
@@ -0,0 +1,11 @@
+// There is a regression introduced for issue #143828
+//@ edition: 2015
+
+#![allow(dead_code)]
+trait Foo {
+    fn foo([a, b]: [i32; 2]) {}
+    //~^ ERROR: expected `;` or `]`, found `,`
+    //~| ERROR: patterns aren't allowed in methods without bodies
+}
+
+fn main() {}