########
/(?{"{"}})/ # Check it outside of eval too
EXPECT
-Unmatched right bracket at (re_eval 1) line 1, at end of line
+Unmatched right curly bracket at (re_eval 1) line 1, at end of line
syntax error at (re_eval 1) line 1, near ""{"}"
Compilation failed in regexp at - line 1.
########
';
EXPECT
ZZZ
+########
+-w
+if (@ARGV) { print "" }
+else {
+ if ($x == 0) { print "" } else { print $x }
+}
+EXPECT
+Use of uninitialized value at - line 4.