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<?hh $x = Vector{}; $s = "Vector"; var_dump($x instanceof Vector); var_dump($x instanceof $s);
Output for 8.0.13, 8.5.1 - 8.5.3
Parse error: syntax error, unexpected variable "$x" in /in/lY1R1 on line 3
Process exited with code 255.
Output for 7.2.29 - 7.2.33, 7.3.16 - 7.3.31, 7.4.3 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0
<?hh $x = Vector{}; $s = "Vector"; var_dump($x instanceof Vector); var_dump($x instanceof $s);
Output for 7.0.0 - 7.0.15, 7.1.0 - 7.1.1, 7.3.32 - 7.3.33, 7.4.33
Parse error: syntax error, unexpected '$x' (T_VARIABLE) in /in/lY1R1 on line 3
Process exited with code 255.

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