parse.y: fix labelarg

* parse.y (IS_BEG): include labeled argument state, which was
  EXPR_LABELARG.  [ruby-dev:49221] [Bug #11456]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51624 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/parse.y b/parse.y
index cc6d3621b5..b4c8c9ad05 100644
--- a/parse.y
+++ b/parse.y
@@ -7108,7 +7108,7 @@ parser_prepare(struct parser_params *parser)
 
 #define IS_ARG() IS_lex_state(EXPR_ARG_ANY)
 #define IS_END() IS_lex_state(EXPR_END_ANY)
-#define IS_BEG() IS_lex_state(EXPR_BEG_ANY)
+#define IS_BEG() (IS_lex_state(EXPR_BEG_ANY) || IS_lex_state_all(EXPR_ARG|EXPR_LABELED))
 #define IS_SPCARG(c) (IS_ARG() && space_seen && !ISSPACE(c))
 #define IS_LABEL_POSSIBLE() (\
 	(IS_lex_state(EXPR_LABEL|EXPR_ENDFN) && !cmd_state) || \
@@ -8361,7 +8361,7 @@ parser_yylex(struct parser_params *parser)
 	return tSYMBEG;
 
       case '/':
-	if (IS_lex_state(EXPR_BEG_ANY)) {
+	if (IS_BEG()) {
 	    lex_strterm = NEW_STRTERM(str_regexp, '/', 0);
 	    return tREGEXP_BEG;
 	}