Use FileCache for infoParserDynamic.php

Thank you for creating this issue to improve Drupal.

We are working to decide if this task is still relevant to a currently supported version of Drupal. There hasn't been any discussion here for over 8 years which suggests that this has either been implemented or is no longer relevant. Your thoughts on this will allow a decision to be made.

Since we need more information to move forward with this issue, the status is now Postponed (maintainer needs more info). If we don't receive additional information to help with the issue, it may be closed after three months.

Thanks!

Yes this would be great!

Feel free to move back if you think still valid!

Whoops forgot to change status.

This needs tests and profiling, but I moved the patch into an MR to see if anything fails outright.

Actually now that I've looked at this I'm not sure we need this.

InfoParserDynamic is only used by two things:
InfoParser which already uses filecache to cache the results.
InstallCommand which is only used for command line installs.
getProfiles is called more than once, but not sure file cache is worth it in that situation.

system_rebuild_module_data has been gone since D9 too.