Add ellipsis to HIR RecordLit

Author: lowr

src/tools/rust-analyzer/crates/hir-def/src/body/lower.rs

@@ -378,9 +378,10 @@ impl ExprCollector<'_> {
                         })
                         .collect();
                     let spread = nfl.spread().map(|s| self.collect_expr(s));
-                    Expr::RecordLit { path, fields, spread }
+                    let ellipsis = nfl.dotdot_token().is_some();
+                    Expr::RecordLit { path, fields, spread, ellipsis }
                 } else {
-                    Expr::RecordLit { path, fields: Box::default(), spread: None }
+                    Expr::RecordLit { path, fields: Box::default(), spread: None, ellipsis: false }
                 };
 
                 self.alloc_expr(record_lit, syntax_ptr)

src/tools/rust-analyzer/crates/hir-def/src/expr.rs

@@ -138,6 +138,7 @@ pub enum Expr {
         path: Option<Box<Path>>,
         fields: Box<[RecordLitField]>,
         spread: Option<ExprId>,
+        ellipsis: bool,
     },
     Field {
         expr: ExprId,

src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/expr.rs

@@ -305,7 +305,7 @@ pub fn record_literal_missing_fields(
     expr: &Expr,
 ) -> Option<(VariantId, Vec<LocalFieldId>, /*exhaustive*/ bool)> {
     let (fields, exhaustive) = match expr {
-        Expr::RecordLit { path: _, fields, spread } => (fields, spread.is_none()),
+        Expr::RecordLit { fields, spread, .. } => (fields, spread.is_none()),
         _ => return None,
     };
 

src/tools/rust-analyzer/crates/hir-ty/src/infer/expr.rs

@@ -421,7 +421,7 @@ impl<'a> InferenceContext<'a> {
                 }
                 TyKind::Never.intern(Interner)
             }
-            Expr::RecordLit { path, fields, spread } => {
+            Expr::RecordLit { path, fields, spread, .. } => {
                 let (ty, def_id) = self.resolve_variant(path.as_deref(), false);
                 if let Some(variant) = def_id {
                     self.write_variant_resolution(tgt_expr.into(), variant);