Rename within_fn_param to outermost_fn_param_pat

compiler/rustc_typeck/src/check/gather_locals.rs

@@ -14,16 +14,16 @@ pub(super) struct GatherLocalsVisitor<'a, 'tcx> {
     // params are special cases of pats, but we want to handle them as
     // *distinct* cases. so track when we are hitting a pat *within* an fn
     // param.
-    within_fn_param: bool,
+    outermost_fn_param_pat: bool,
 }
 
 impl<'a, 'tcx> GatherLocalsVisitor<'a, 'tcx> {
     pub(super) fn new(
         fcx: &'a FnCtxt<'a, 'tcx>,
         parent_id: hir::HirId,
-        within_fn_param: bool,
+        outermost_fn_param_pat: bool,
     ) -> Self {
-        Self { fcx, parent_id, within_fn_param }
+        Self { fcx, parent_id, outermost_fn_param_pat }
     }
 
     fn assign(&mut self, span: Span, nid: hir::HirId, ty_opt: Option<LocalTy<'tcx>>) -> Ty<'tcx> {
@@ -98,17 +98,17 @@ impl<'a, 'tcx> Visitor<'tcx> for GatherLocalsVisitor<'a, 'tcx> {
     }
 
     fn visit_param(&mut self, param: &'tcx hir::Param<'tcx>) {
-        let old_within_fn_param = mem::replace(&mut self.within_fn_param, true);
+        let old_outermost_fn_param_pat = mem::replace(&mut self.outermost_fn_param_pat, true);
         intravisit::walk_param(self, param);
-        self.within_fn_param = old_within_fn_param;
+        self.outermost_fn_param_pat = old_outermost_fn_param_pat;
     }
 
     // Add pattern bindings.
     fn visit_pat(&mut self, p: &'tcx hir::Pat<'tcx>) {
         if let PatKind::Binding(_, _, ident, _) = p.kind {
             let var_ty = self.assign(p.span, p.hir_id, None);
 
-            if self.within_fn_param {
+            if self.outermost_fn_param_pat {
                 if !self.fcx.tcx.features().unsized_fn_params {
                     self.fcx.require_type_is_sized(
                         var_ty,
@@ -129,9 +129,9 @@ impl<'a, 'tcx> Visitor<'tcx> for GatherLocalsVisitor<'a, 'tcx> {
                 var_ty
             );
         }
-        let old_within_fn_param = mem::replace(&mut self.within_fn_param, false);
+        let old_outermost_fn_param_pat = mem::replace(&mut self.outermost_fn_param_pat, false);
         intravisit::walk_pat(self, p);
-        self.within_fn_param = old_within_fn_param;
+        self.outermost_fn_param_pat = old_outermost_fn_param_pat;
     }
 
     // Don't descend into the bodies of nested closures.