[#1083] Try block syntax

crates/ra_syntax/src/ast/traits.rs

@@ -33,6 +33,12 @@ pub trait LoopBodyOwner: AstNode {
     }
 }
 
+pub trait TryBlockBodyOwner: AstNode {
+    fn try_body(&self) -> Option<&ast::Block> {
+        child_opt(self)
+    }
+}
+
 pub trait ArgListOwner: AstNode {
     fn arg_list(&self) -> Option<&ast::ArgList> {
         child_opt(self)