Remove xfail from tests that do not fail anymore (#10871)

Reduce the scope of XFAIL (#8592)

Revert "XFAIL tests (GH-8588)"

This reverts commit f2ac4f206a5c68d9a25c352e6eb830bc942bc130.

XFAIL tests (GH-8588)

Migrate skip checks to --EXTENSIONS--, p3

For rationale, see #6787

Extensions migrated in part 3:
* ftp
* gmp
* iconv
* opcache
* shmop

Remove support for preloading on Windows

Due to ASLR restrictions, preloading on Windows does not work with
any code that has preloading dependencies on internal classes.
This effect

Remove support for preloading on Windows

Due to ASLR restrictions, preloading on Windows does not work with
any code that has preloading dependencies on internal classes.
This effectively makes it unusable for any non-trivial codebase.

Instead of pretending like preloading is going to work, only to
make people realize that it really doesn't once they get beyond
a dummy example, we disable support for preloading on Windows
entirely.

Closes GH-4999.

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Fixed bug #78950: Preloading trait method with static variables

We need to make sure that trait methods with static variables
allocate a separate MAP slot for the static variables pointe

Fixed bug #78950: Preloading trait method with static variables

We need to make sure that trait methods with static variables
allocate a separate MAP slot for the static variables pointer,
rather than working in-place.

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