Use EXTENSIONS instead of SKIPIF sections in *.phpt

This also fixes skipped tests due to different naming "zend-test"
instead of "zend_test" and "PDO" instead of "pdo":

- ext/do

Use EXTENSIONS instead of SKIPIF sections in *.phpt

This also fixes skipped tests due to different naming "zend-test"
instead of "zend_test" and "PDO" instead of "pdo":

- ext/dom/tests/libxml_global_state_entity_loader_bypass.phpt
- ext/simplexml/tests/libxml_global_state_entity_loader_bypass.phpt
- ext/xmlreader/tests/libxml_global_state_entity_loader_bypass.phpt
- ext/zend_test/tests/observer_sqlite_create_function.phpt

EXTENSIONS section is used for the Windows build to load the non-static
extensions.

Closes GH-13276

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Fix GH-8364: msgfmt_format $values may not support references

We need to deref any references passed in the `$values` array. While
we could handle this in the type switch, doing it righ

Fix GH-8364: msgfmt_format $values may not support references

We need to deref any references passed in the `$values` array. While
we could handle this in the type switch, doing it right away in the
foreach loop makes that more explicit, and also circumvents the missing
range checks for integers which are not passed as int or double.

Closes GH-8407.

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