Support PHP 8.3/8.4 features — full reflection parity

[devin-ai-integration]

This tracks all remaining work to achieve full parity with native PHP 8.3/8.4 reflection APIs.

Current state

• hasHooks(), hasHook(), isVirtual() — implemented
• isPrivateSet(), isProtectedSet(), isFinal(), isAbstract() — implemented
• Asymmetric visibility — partially implemented (missing isPublicSet())
• Property hooks basic parsing — working via nikic/php-parser ^5.4
• Interface abstract properties — NOT supported (commented out in tests)
• getHook(), getSettableType(), getRawSettableType() — NOT implemented

Sub-tasks

• P1: Implement ReflectionProperty::getHook() (PHP 8.4) #163 P1 Implement ReflectionProperty::getHook() (PHP-8.4)
• P2: Implement ReflectionProperty::getSettableType() / getRawSettableType() (PHP 8.4) #164 P2 Implement ReflectionProperty::getSettableType() / getRawSettableType() (PHP-8.4)
• P3: Implement ReflectionProperty::isPublicSet() (PHP 8.4) #165 P3 Implement ReflectionProperty::isPublicSet() (PHP-8.4)
• P4: Support interface abstract properties (PHP 8.4) #166 P4 Support interface abstract properties (PHP-8.4)
• P5: Add isVirtual() to parity test getters (PHP 8.4) #167 P5 Add isVirtual() to parity test getters (PHP-8.4)
• P6: Fix isAbstract() for unimplemented abstract properties (PHP 8.4) #168 P6 Fix isAbstract() for unimplemented abstract properties (PHP-8.4)
• P7: Add #[\Override] test stubs and parity tests (PHP 8.3) #169 P7 Add #[\Override] test stubs and parity tests (PHP-8.3)

[devin-ai-integration]

All sub-tasks (P1–P7) completed and merged across Waves 1–5.