transpile: create pointer types for modified function pointer types

Author: fw-immunant

c2rust-transpile/src/c_ast/conversion.rs

@@ -695,6 +695,11 @@ impl ConversionContext {
                         CTypeKind::Function(ret, arguments, is_variadic, is_noreturn, has_proto);
                     self.add_type(new_id, not_located(function_ty));
                     self.processed_nodes.insert(new_id, FUNC_TYPE);
+
+                    let pointer_ty = CTypeKind::Pointer(CQualTypeId::new(CTypeId(new_id)));
+                    let new_id = self.id_mapper.fresh_id();
+                    self.add_type(new_id, not_located(pointer_ty));
+                    self.processed_nodes.insert(new_id, OTHER_TYPE);
                 }
 
                 TypeTag::TagTypeOfType if expected_ty & TYPE != 0 => {