[PurHur]

Summary

Closes #14839.

Dynamic property E_DEPRECATED on undeclared writes was already implemented in lib/VM.php (fetchObjectPropertyWriteLvalue) and lib/JIT/DynamicPropertyDeprecationGuard.php. This PR fixes the compliance phpt expectation so the guard matches CLI stderr formatting (file/line suffix).

Verification

Issue repro (php-src-strict, error_reporting=E_ALL):

php bin/vm.php -d error_reporting=E_ALL -r 'class C {} $c = new C; $c->x = 1; echo "ok\n";' 2>&1

Output:

PHP Deprecated:  Creation of dynamic property C::$x is deprecated in Command line code on line 1
ok

Compliance + unit guards:

./script/docker-exec.sh -- bash -lc 'php vendor/bin/phpunit \
  test/compliance/DynamicPropertyDeprecationVMTest.php \
  test/compliance/DynamicPropertyDeprecatedJITTest.php \
  test/unit/DynamicPropertyDeprecationCliTest.php'

All OK (3 tests).

stdClass remains exempt (no deprecation on dynamic writes).

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