Make FnScopes use hir::Expr

This was a bit complicated. I've added a wrapper type for now that does the
LocalSyntaxPtr <-> ExprId translation; we might want to get rid of that or give
it a nicer interface.

1 files changed, 4 insertions, 6 deletions

diff --git a/crates/ra_syntax/src/grammar.ron b/crates/ra_syntax/src/grammar.ron
index 5bcdf3f1d..3c640ed47 100644
--- a/crates/ra_syntax/src/grammar.ron
+++ b/crates/ra_syntax/src/grammar.ron
@@ -446,12 +446,7 @@ Grammar(
                 "BlockExpr",
                 "ReturnExpr",
                 "MatchExpr",
-                "MatchArmList",
-                "MatchArm",
-                "MatchGuard",
                 "StructLit",
-                "NamedFieldList",
-                "NamedField",
                 "CallExpr",
                 "IndexExpr",
                 "MethodCallExpr",
@@ -472,7 +467,10 @@ Grammar(
         "PathPat": (),
         "StructPat": (),
         "FieldPatList": (),
-        "TupleStructPat": (),
+        "TupleStructPat": (
+            options: ["Path"],
+            collections: [["args", "Pat"]],
+        ),
         "TuplePat": (),
         "SlicePat": (),
         "RangePat": (),