ext/standard/tests/http/bug60570.phpt failure

Hi,

Yesterday we discussed with Nikta the failure of
ext/standard/tests/http/bug60570.phpt. It was in context of AST patch, but
the failure is not related to AST at all. It's just a bad test that makes
wrong assumption.

Resource leaks can't be caught using get_memory_usage().

To have a robust way to detect resource leaks I propose a new function -
get_resources() that returns an array of all registered resources or an
array of registered resources of particular type. See patch:

https://gist.github.com/dstogov/f96c04f5979e726909ab

I'm not sure if such small change needs RFC.

Thoughts?

Thanks. Dmitry.