Move norecursedir check to the pytest_ignore_collect hook

[bluetech]

Currently the two recursive collectors Session and Package perform the norecursedir check directly in the collector:

pytest/src/_pytest/main.py

Lines 566 to 568 in 85c5bd2

	norecursepatterns = self.config.getini("norecursedirs")
	if any(fnmatch_ex(pat, fspath) for pat in norecursepatterns):
	return False

pytest/src/_pytest/python.py

Lines 709 to 711 in 85c5bd2

	norecursepatterns = self.config.getini("norecursedirs")
	if any(fnmatch_ex(pat, fspath) for pat in norecursepatterns):
	return False

I think it would be strictly better to move this check to main's pytest_ignore_collect hookimpl:

• Less duplication
• Better decoupling -- only main knows about the option it defines
• More control for plugins