Merge branch '73-error-when-dry-running-a-contract-having-a-storage-which-contains-a-lambda' into 'dev'

Resolve "Error when dry-running a contract (having a storage which contains a lambda)"

Closes #73

See merge request ligolang/ligo!219

src/passes/6-transpiler/untranspiler.ml

@@ -220,5 +220,9 @@ let rec untranspile (v : value) (t : AST.type_value) : AST.annotated_expression
         @@ List.map (fun (x, (y, z)) -> let%bind yz = untranspile y z in ok (x, yz)) lst in
       let m' = map_of_kv_list lst in
       return (E_record m')
-  | T_function _ -> fail @@ bad_untranspile "function" v
+  | T_function _ ->
+      let%bind n =
+        trace_strong (wrong_mini_c_value "lambda as string" v) @@
+        get_string v in
+      return (E_literal (Literal_string n))
   | T_variable (Type_name v) -> return (E_variable v)

src/passes/8-compiler/uncompiler.ml

@@ -118,6 +118,13 @@ let rec translate_value (Ex_typed_value (ty, value)) : value result =
     )
   | (Operation_t _) , (op , _) ->
       ok @@ D_operation op
+  | (Lambda_t _ as ty) , _ ->
+      let%bind m_ty =
+        trace_tzresult_lwt (simple_error "unparsing unrecognized data") @@
+        Proto_alpha_utils.Memory_proto_alpha.unparse_michelson_ty ty in
+      let pp_lambda =
+        Format.asprintf "[lambda of type: %a ]" Michelson.pp m_ty in
+        ok @@ D_string pp_lambda
   | ty, v ->
       let%bind error =
         let%bind m_data =