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, 0 insertions, 4 deletions

diff --git a/crates/ra_syntax/test_data/parser/ok/0030_traits.rs b/crates/ra_syntax/test_data/parser/ok/0030_traits.rs
index 23c4be0e1..ac30843ef 100644
--- a/crates/ra_syntax/test_data/parser/ok/0030_traits.rs
+++ b/crates/ra_syntax/test_data/parser/ok/0030_traits.rs
@@ -1,7 +1,3 @@
-pub trait WriteMessage {
-    fn write_message(&FrontendMessage);
-}
-
 trait Runnable {
     fn handler();
 }