[ruby/prism] Check void expressions for constant paths

Fix https://github.com/ruby/prism/pull/1920

https://github.com/ruby/prism/commit/ee8e03bac7

prism/prism.c

@@ -2457,6 +2457,8 @@ pm_constant_path_or_write_node_create(pm_parser_t *parser, pm_constant_path_node
  */
 static pm_constant_path_node_t *
 pm_constant_path_node_create(pm_parser_t *parser, pm_node_t *parent, const pm_token_t *delimiter, pm_node_t *child) {
+    pm_assert_value_expression(parser, parent);
+
     pm_constant_path_node_t *node = PM_ALLOC_NODE(parser, pm_constant_path_node_t);
 
     *node = (pm_constant_path_node_t) {

test/prism/errors_test.rb

@@ -1654,6 +1654,7 @@ module Prism
         (return).(1)
         (return)[1]
         (return)[1] = 2
+        (return)::foo
       RUBY
       message = 'Unexpected void value expression'
       assert_errors expression(source), source, [
@@ -1661,6 +1662,19 @@ module Prism
         [message, 14..20],
         [message, 27..33],
         [message, 39..45],
+        [message, 55..61],
+      ], compare_ripper: false # Ripper does not check 'void value expression'.
+    end
+
+    def test_void_value_expression_in_constant_path
+      source = <<~RUBY
+        (return)::A
+        class (return)::A; end
+      RUBY
+      message = 'Unexpected void value expression'
+      assert_errors expression(source), source, [
+        [message, 1..7],
+        [message, 19..25],
       ], compare_ripper: false # Ripper does not check 'void value expression'.
     end