Description:
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When a syntax error occurred where an unexpected kind of token is found, if the error message says "Unexpected X, expecting Y", then Y **MUST** be a completely exhaustive list of valid expected kinds of tokens. If there are too many, then just say "Unexpected X", but do not tell me "expecting Y" if Y is not the only valid option.

See example

Test script:
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<?php

$a = ['foo'=>'bar'];

unset($a['foo'];

Expected result:
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Either this:

>  syntax error, unexpected ';', expecting '::' (T_PAAMAYIM_NEKUDOTAYIM) or ')' or [... add any other valid options]

or this:

> syntax error, unexpected ':', expecting '::' (T_PAAMAYIM_NEKUDOTAYIM) or possibly something else.


Actual result:
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syntax error, unexpected ';', expecting :: (T_PAAMAYIM_NEKUDOTAYIM)