########
%@x=0;
EXPECT
-Can't modify hash deref in repeat at - line 1, near "0;"
+Can't modify hash dereference in repeat (x) at - line 1, near "0;"
Execution of - aborted due to compilation errors.
########
$_="foo";
';
EXPECT
ZZZ
+########
+-w
+if (@ARGV) { print "" }
+else {
+ if ($x == 0) { print "" } else { print $x }
+}
+EXPECT
+Use of uninitialized value at - line 4.