Fixed the location of args node with numbered parameter

parse.y

@@ -11377,7 +11377,11 @@ static NODE *
 args_with_numbered(struct parser_params *p, NODE *args, int max_numparam)
 {
     if (max_numparam > NO_PARAM) {
-	if (!args) args = new_args_tail(p, 0, 0, 0, 0);
+	if (!args) {
+	    YYLTYPE loc = RUBY_INIT_YYLLOC();
+	    args = new_args_tail(p, 0, 0, 0, 0);
+	    nd_set_loc(args, &loc);
+	}
 	args->nd_ainfo->pre_args_num = max_numparam;
     }
     return args;

test/ruby/test_syntax.rb

@@ -1449,6 +1449,8 @@ eom
       assert_valid_syntax("->{#{c};->{_1};end;_1}\n")
       assert_valid_syntax("->{_1;#{c};->{_1};end}\n")
     end
+
+    1.times {_1}
   end
 
   def test_value_expr_in_condition