Stdlib: memory_get_usage/peak(null) TypeError under strict_types (#30346)

[PurHur]

Summary

• Honor caller strict_types for memory_get_usage() / memory_get_peak_usage() $real_usage (Z_PARAM_BOOL) so literal/runtime null throws Zend-matching TypeError instead of soft DEP+int.
• VM: frame-aware VmMath::parseBoolBuiltinArgForFrame after MemoryUsage enum handling (ext/standard/VmMemory.php).
• JIT/AOT: compile-time null catchable abort + JitBoolArg::lowerCoerceZParamBool for soft null (lib/JIT/JitMemoryUsageArg.php).
• Soft path unchanged: DEP + coerce to false / int usage (existing #21615 case).
• php-src: ext/standard/basic_functions.c / .stub.php — memory_get_usage(bool $real_usage = false): int.

Closes #30346

Test plan

• VM repro: php bin/vm.php test/repro/issue_30346_memory_get_usage_null_strict.php
• AOT repro: ./phpc build -o /tmp/mgu_null_strict test/repro/issue_30346_memory_get_usage_null_strict.php && /tmp/mgu_null_strict
• Soft null still DEP+OK / AOT int: issue_21615_memory_usage_null.php + soft AOT one-liner
• vendor/bin/phpunit -c phpunit.xml.dist --filter MemoryGetUsageNullStrict (VM+JIT compliance + unit)
• Soft path + MemoryUsage bool handlers still green

Verification transcript (Docker php-compiler:22.04-dev)

===VM===
memory_get_usage(): Argument #1 ($real_usage) must be of type bool, null given
memory_get_peak_usage(): Argument #1 ($real_usage) must be of type bool, null given
===AOT===
… AOT_OK (same TypeError lines)
===PHPUnit MemoryGetUsageNullStrict===
OK (5 tests, 12 assertions)

Pillar probe before claim: north-star5-fast ok; helper-runtime-prelink red on stale DOM helpers (pre-existing, unrelated); inventory construct-flag doc drift only.

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