C++ and FAST_ZPP macros

This blog post came across my twitter today and it's certainly legit. https://cismon.net/2017/12/18/Fast-ZPP-s-Incompatibility-with-CPP/ I tossed together this quick and dirty fix (and tested it with a simple C++ extension), but I wanted to get a read on what branch folks think it should be applied to. https://github.com/sgolemon/php-src/commit/469ddd26331dbd736ad13eaac7170ccc43d09c7f As the blog post notes, it's a simple matter to work around the bug in extension code (indeed, an extension can simply opt to not use FAST_ZPP). On the other hand, the fix is pretty basic, and existing functionality of the default expected type effectively being Z_EXPECTED_LONG (because both have a value of zero) is just a bit.... weird. Thoughts? If I don't hear anything in a week, I'll just apply to 7.1 and merge up. -Sara