Straw Poll: Redefine Constants Exception

There have been a discussions in the past about upgrading the attempted redeclaration of constants to be an exception (ValueError).

Here is one from 2016 from Dmitry: https://wiki.php.net/rfc/constant_redefinition

Discussion: https://externals.io/message/93885

Since this RFC was made in 2016, attempted redeclaration was promoted to a warning instead of a notice.

As internals has been making efforts in recent years to move towards saner error handling this seems like a suitable candidate for tightening up, so I would like to collect opinions on how many people would be in favour of bumping this warning once more up to an exception (likely a ValueError) on the basis that attempting to redefine a constant is impossible, so is a programming error.

Strawpoll: Promote attempts at redeclaring constants to Exception
Real name Yes - In 8.2 Yes - In 9.0 No - Leave as Warning
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