[perf] Compare property name before anonymous-class reflection in PropertyFetchFinder

[TomasVotruba]

When findPropertyFetchesInClassLike() scans a class body for fetches of one property, each PropertyFetch node ran isInAnonymous() - which calls resolveClassReflection() - before the property name was compared. A class body references many different properties, so every fetch of an unrelated property paid for the anonymous-class reflection lookup only to fail the name check right after.

The property name is now compared first; on a mismatch it bails before isInAnonymous(). The outcome is unchanged: a name mismatch returned false either way (isNamePropertyNameEquals -> isLocalPropertyFetchByName rechecks the same name), and isInAnonymous() is a pure query with no side effect.

Full test suite passes (4988 tests).

Bench included (bench/property_fetch_finder_name_bench.php), scanning a class with 401 property fetches (only a couple match the target). CPU per scan, two runs each:

	ms/scan
before	~4.9
after	~3.3-3.6

~1.4x faster. The finder runs in dead-code, privatization and readonly rules that scan class bodies for property usage.