Aaron Jorbin 049b63a3fa Query: Fix warning on counting non countable
Merges [42581], [42585], and [42594] to the 4.9 branch.

Adds tests to continue the behavior for both null and strings. Skip the tests on PHP 5.2 as they require ReflectionMethod.

See https://wiki.php.net/rfc/counting_non_countables for information on the PHP change.

Fixes #42860.
Props dd32 for test skipping and janak007 and ayeshrajans for initial patches.


git-svn-id: https://develop.svn.wordpress.org/branches/4.9@42597 602fd350-edb4-49c9-b593-d223f7449a82
2018-01-24 21:43:17 +00:00
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