What is the purpose of the `docComment` field in synthesized members?

as far as i’m aware, synthesized symbolgraph symbols always contain duplicated content, and it is not possible for package authors to provide real doc comments for them, since they are not attached to any physical declaration.

at the same time, the synthesized declarations themselves are useful, just not the duplicated content. so the docComments are just unnecessary bloat in the json files, which for the standard library (i’ve measured) contributes to nearly a third of the file size.

is there a way to generate symbolgraphs that include the synthesized declarations, but not the doc comments?