Rework value parameter parsing

- `Fn__(...)` parameters with idents/patterns no longer parse
- Trait function parameters with arbitrary patterns parse
- Trait function parameters without idents/patterns no longer parse
- `fn(...)` parameters no longer parse with patterns other than a single ident

1 files changed, 1 insertions, 1 deletions

diff --git a/crates/ra_parser/src/grammar/expressions/atom.rs b/crates/ra_parser/src/grammar/expressions/atom.rs
index 2cc321473..f154077a8 100644
--- a/crates/ra_parser/src/grammar/expressions/atom.rs
+++ b/crates/ra_parser/src/grammar/expressions/atom.rs
@@ -229,7 +229,7 @@ fn lambda_expr(p: &mut Parser) -> CompletedMarker {
     let m = p.start();
     p.eat(T![async]);
     p.eat(T![move]);
-    params::param_list_opt_types(p);
+    params::param_list_closure(p);
     if opt_fn_ret_type(p) {
         if !p.at(T!['{']) {
             p.error("expected `{`");