change implementation of loaded and close gui in descriptive names test

Author: dqpinel

src/utils_gen/structures_utils.jl

@@ -19,7 +19,7 @@ end
 
 Get a list of loaded packages.
 """
-loaded() = filter((x) -> typeof(eval(x)) <: Module, names(Main, imported = true))
+loaded() = [String(n) for n ∈ names(Main, imported = true) if getfield(Main, n) isa Module]
 
 """
     place_nodes_in_circle(total_nodes::Int64, current_node::Int64, r::Float32, xₒ::Float32, yₒ::Float32)

test/test_descriptive_names.jl

@@ -63,3 +63,4 @@ case, model, m, gui = run_case()
         EMGUI.close(gui3)
     end
 end
+EMGUI.close(gui)