[P2] Interpreter: Array.prototype.findLastIndex starts at the wrong index for long array-likes #3525

The interpreter clamps the length used by Array.prototype.findLastIndex.call on an arguments object to 1,048,576. A predicate that matches the first index visited exposes the incorrect start index immediately.

function last() {
    arguments.length = 1048577;
    console.log(Array.prototype.findLastIndex.call(arguments, () => true));
}
last();

Node v22.23.2 and compiled SharpTS on clean main at cabb416 print 1048576. Interpreted SharpTS on the same commit prints 1048575. Run as an unchecked classic .js program using --no-tsconfig --noLib.

The generic callback path in ArrayBuiltIns.InvokeArrayLikeCallbackMethod clamps LengthOfArrayLike before iteration. This baseline interpretation bug was found while reproducing the separate compiled regression from the review of #3510.