fix(frontends/lean): make all variables/parameters visible for 'variables' command

src/frontends/lean/decl_cmds.cpp

@@ -203,7 +203,7 @@ static environment variables_cmd_core(parser & p, variable_kind k) {
         expr type = p.parse_expr();
         p.parse_close_binder_info(bi);
         level_param_names ls = to_level_param_names(collect_univ_params(type));
-        list<expr> ctx = locals_to_context(type, p);
+        list<expr> ctx = p.locals_to_context();
         for (auto id : ids) {
             // Hack: to make sure we get different universe parameters for each parameter.
             // Alternative: elaborate once and copy types replacing universes in new_ls.

tests/lean/run/mor.lean

@@ -0,0 +1,15 @@
+-- Copyright (c) 2014 Floris van Doorn. All rights reserved.
+-- Released under Apache 2.0 license as described in the file LICENSE.
+-- Author: Floris van Doorn
+
+import algebra.category
+
+open eq eq.ops category
+
+namespace morphism
+  section
+  parameter {ob : Type}
+  parameter {C : category ob}
+  variables {a b c d : ob} {h : mor c d} {g : mor b c} {f : mor a b}
+  end
+end morphism