Remove or convert deprecated E_STRICT usages

[alexgit2k]

The E_STRICT constant has been deprecated since PHP 8.4, see https://php.watch/versions/8.4/E_STRICT-deprecated.
It should be either removed or replaced by E_NOTICE as "since PHP 8.0, all E_STRICT notices have changed to E_NOTICE".

E_STRICT has already been removed from scripts/build-phar.phpin #619, but there are 3 occurrences in tests/Core/File/IsReferenceTest.inc:

PHP_CodeSniffer/tests/Core/File/IsReferenceTest.inc

Line 8 in 049b27d

error_reporting( E_NOTICE & E_STRICT );

PHP_CodeSniffer/tests/Core/File/IsReferenceTest.inc

Line 188 in 049b27d

$d = E_NOTICE & E_STRICT,

PHP_CodeSniffer/tests/Core/File/IsReferenceTest.inc

Line 202 in 049b27d

$fn = fn( $one = E_NOTICE & E_STRICT) => 1;

[jrfnl]

Closing as bogus (again).

[alexgit2k]

Sad that you don't write why it is bogus, because I was not able to find it out in my due diligence.

[jrfnl]

Because .inc files are "test case files", i.e. code used to test sniffs. Not code which will ever be run. Test case files often contain invalid code and even parse errors just to stress test sniffs.

The fact that deprecated code is used in a test case file is completely besides the point and not something which needs to be "fixed".

Also: the principle of this is explained in detail in the CONTRIBUTING guide, so no, I did not consider that I would need to explain this.