Merge #701

701: Minor type inference tweaks r=flodiebold a=marcusklaas

Pass down expectation for reference expressions and type the guard in match expressions.

I wasn't able to add a test for the former addition because the type variable previously introduced would always resolve to the right type in the things I tried!

Co-authored-by: Marcus Klaas de Vries <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/crates/ra_syntax/src/grammar.ron b/crates/ra_syntax/src/grammar.ron
index 85fc79038..e4cad4eb3 100644
--- a/crates/ra_syntax/src/grammar.ron
+++ b/crates/ra_syntax/src/grammar.ron
@@ -418,7 +418,7 @@ Grammar(
             ],
             collections: [ [ "pats", "Pat" ] ]
         ),
-        "MatchGuard": (),
+        "MatchGuard": (options: ["Expr"]),
         "StructLit": (options: ["Path", "NamedFieldList", ["spread", "Expr"]]),
         "NamedFieldList": (collections: [ ["fields", "NamedField"] ]),
         "NamedField": (options: ["NameRef", "Expr"]),