Don’t warn for open local *FH

There is this ancient ‘Precedence problem’ warning that warns for open
followed by a bareword and then an operator that would have made open
into a unary-precedence operator in Perl 4.  It was not taking into
account that the bareword might be a Perl keyword.  In that case it
shouldn’t be warning.

1 files changed, 1 insertions, 0 deletions

diff --git a/toke.c b/toke.c
index e5da941510..2c29c582e2 100644
--- a/toke.c
+++ b/toke.c
@@ -7672,6 +7672,7 @@ Perl_yylex(pTHX)
 		if ( *t && strchr("|&*+-=!?:.", *t) && ckWARN_d(WARN_PRECEDENCE)
 		    /* [perl #16184] */
 		    && !(t[0] == '=' && t[1] == '>')
+		    && !keyword(s, d-s, 0)
 		) {
 		    int parms_len = (int)(d-s);
 		    Perl_warner(aTHX_ packWARN(WARN_PRECEDENCE),