Validate ModuleNode

Author: thomasmarshall

src/prism.c

@@ -19307,6 +19307,8 @@ parse_expression_prefix(pm_parser_t *parser, pm_binding_power_t binding_power, b
                 pm_parser_err_token(parser, &module_keyword, PM_ERR_MODULE_IN_METHOD);
             }
 
+            PM_VALIDATE_NODE_TYPE(parser, constant_path, PM_CONSTANT_PATH_NODE, PM_CONSTANT_READ_NODE);
+
             pop_block_exits(parser, previous_block_exits);
             pm_node_list_free(&current_block_exits);
 

test/prism/result/error_recovery_test.rb

@@ -98,6 +98,7 @@ def test_module_node_constant_path_missing
 
       node = result.value.statements.body.first.body.body.first
       assert_kind_of ErrorRecoveryNode, node.constant_path
+      assert_nil node.constant_path.child
     end
 
     def test_multi_target_node_lefts_back_reference