Fix type name emission for non-reference user types (enums)

trans/transpiler/phases/emit_cpp/__init__.py

@@ -67,7 +67,11 @@ class NodeVisitor(UniversalVisitor):
         elif node is TY_STR:
             yield "PyStr"
         elif isinstance(node, UserType):
-            yield f"PyObj<decltype({node.name})>"
+            if node.is_reference:
+                yield "PyObj<"
+            yield f"decltype({node.name})"
+            if node.is_reference:
+                yield "::py_type>"
         elif isinstance(node, TypeType):
             yield "auto"  # TODO
         elif isinstance(node, FunctionType):