The Preload attribute is renamed to LoadableDescriptors in Valhalla

[hangshao0]

See the latest spec;

The Preload attribute (#17233) is now renamed to LoadableDescriptors.

Also the Preload attribute has the following format:

Preload_attribute {
    u2 attribute_name_index;
    u4 attribute_length;
    u2 number_of_classes;
    u2 classes[number_of_classes];
}

The LoadableDescriptors attribute has the following format:

LoadableDescriptors_attribute {
    u2 attribute_name_index;
    u4 attribute_length;
    u2 number_of_descriptors;
    u2 descriptors[number_of_descriptors];
}

Each entry in the descriptors array must be a valid index into the constant_pool table. The constant_pool entry at that index must be a CONSTANT_Utf8_info structure representing a valid field descriptor.

Instead of CONSTANT_Class_info used in Preload, LoadableDescriptors uses field descriptor.

[hangshao0]

FYI @theresa-m @hzongaro @a7ehuo

[github-actions]

Issue Number: 19611
Status: Closed
Actual Components: comp:vm, project:valhalla
Actual Assignees: No one :(
PR Assignees: theresa-m