test: parallel/test-fs-read-promises-position-validation fails on IBM i

[richardlau]

https://ci.nodejs.org/job/node-test-commit-ibmi/nodes=ibmi73-ppc64/1316/consoleFull

09:20:12 not ok 1103 parallel/test-fs-read-promises-position-validation
09:20:12 ---
09:20:12 duration_ms: 1801.82400
09:20:12 severity: fail
09:20:12 exitcode: 1
09:20:12 stack: |-
09:20:12 node:internal/process/esm_loader:40
09:20:12 internalBinding('errors').triggerUncaughtException(
09:20:12 ^
09:20:12 
09:20:12 [Error: EOVERFLOW: value too large for defined data type, read] {
09:20:12 errno: -127,
09:20:12 code: 'EOVERFLOW',
09:20:12 syscall: 'read'
09:20:12 }
09:20:12 
09:20:12 Node.js v21.0.0-pre
09:20:12 ...

This test was introduced by #42835 last week.

Initial glance suggests it's an oversight:

node/test/parallel/test-fs-read-promises-position-validation.mjs

Lines 65 to 67 in b55adfb

	await testValid(Number.MAX_SAFE_INTEGER, [ 'EFBIG' ]);
	await testValid(2n ** 63n - 1n - BigInt(length), [ 'EFBIG' ]);

compared to the non-promises test (test-fs-read-position-validation.mjs)

node/test/parallel/test-fs-read-position-validation.mjs

Lines 74 to 76 in 23cb478

	await testValid(Number.MAX_SAFE_INTEGER, [ 'EFBIG', 'EOVERFLOW' ]);
	await testValid(2n ** 63n - 1n - BigInt(length), [ 'EFBIG', 'EOVERFLOW' ]);

cc @nodejs/platform-ibmi