systemverilog-plugin: Visit vpiTaskFunc in module instance

Signed-off-by: Magdalena Andrys <mandrys@antmicro.com>

systemverilog-plugin/UhdmAst.cc

diff --git a/systemverilog-plugin/UhdmAst.cc b/systemverilog-plugin/UhdmAst.cc
index 9586f97..7939b24 100644
--- a/systemverilog-plugin/UhdmAst.cc
+++ b/systemverilog-plugin/UhdmAst.cc
@@ -1850,7 +1850,7 @@
                 add_or_replace_child(module_node, node);
             }
         });
-        visit_one_to_many({vpiInterface, vpiModule, vpiPort, vpiGenScopeArray, vpiContAssign}, obj_h, [&](AST::AstNode *node) {
+        visit_one_to_many({vpiInterface, vpiModule, vpiPort, vpiGenScopeArray, vpiContAssign, vpiTaskFunc}, obj_h, [&](AST::AstNode *node) {
             if (node) {
                 add_or_replace_child(module_node, node);
             }