[Discussion] Promoting declare failure notices to exceptions?

Greetings, I have created a PR that will throw exceptions when using define() with invalid types or when trying to redefine. Trying to redefine a constant or define a bad constant would throw a ValueError on the name parameter, trying to pass an unsupported type would give a TypeError on the value parameter. Normal promotions are fairly run of the mill, however for some utterly bizarre reason the existing behaviour is to print a notice and not a warning as with almost all other functions that are failing. Is there a good reason not to promote these to exceptions? https://github.com/php/php-src/pull/5265 -- Mark Randall marandall@php.net