parse.y: flush debug output

* parse.y (parser_compile_error): flush debug output before
  compile error message, to keep the order.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59320 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/parse.y b/parse.y
index 410bbdd759..3c76d99585 100644
--- a/parse.y
+++ b/parse.y
@@ -11057,6 +11057,7 @@ parser_compile_error(struct parser_params *parser, const char *fmt, ...)
 {
     va_list ap;
 
+    rb_io_flush(parser->debug_output);
     parser->error_p = 1;
     va_start(ap, fmt);
     parser->error_buffer =