php-in-php: drop leftover Type always-on undefined_array_key warning ABI shells (Zend/zend_execute.c)

[PurHur]

Category

php-in-php · Trust / #32122-class leftover Type always-on ABI shell

Problem

After #33245 dropped __compiler_assert_options, Builtin\Type still always-on addFunction/registerFunction for __compiler_undefined_array_key_warning_cstr / __compiler_undefined_array_key_warning_long. Leftover empty Type decls vs Runtime ABI drift mint undefined_array_key_warning_*.1 (#31894 / #32122). Sentinel after #33245.

Path	Owner today
__compiler_trigger_error	StringTriggerError / JitTriggerErrorKernel (#33234)
__compiler_undefined_array_key_warning_*	still Type always-on; kernel fills body if Type already declared

php-src reference

• php/php-src Zend/zend_execute.c — undefined array key warning path
• php/php-src Zend/zend_execute_API.c — php_error_cb / user error path

PHP implementation target

• ext/standard/JitTriggerErrorKernel.php — declare both undef-key ABIs module-locally (getNamedFunction first); ensure bridges even when trigger_error body already present
• lib/JIT/Builtin/Type.php — remove always-on empty decls; keep StringTriggerError::ensureLinked
• lib/JIT/Builtin/StringTriggerError.php / StringTriggerErrorJit.php — ownership markers
• No new runtime/*.c

Repro / gate

./script/phpunit.sh --filter TypeDeadUndefinedArrayKeyAbiRuntimeShrinkTest
./script/aot-smoke.sh

Done when

• Type.php has no always-on __compiler_undefined_array_key_warning_* add/register
• JitTriggerErrorKernel owns module-local decls; unit shrink test green
• aot-smoke 8/8
• No new runtime/*.c

[PurHur]

claim: implementer-worker-lane-b — starting this run (lane overflow: #32122/#31968/#33244 closed; Trust/#32122-class leftover Type always-on undefined_array_key warning ABIs after #33245 sentinel)