Use file cache in library discovery

Closes #3414807

added 1 commit

• c1896e00 - Test that library discovery uses the file cache

Compare with previous version

added 1 commit

• ff3c3440 - Less code

Compare with previous version

resolved all threads

added 21 commits

• ff3c3440...2fa31524 - 19 commits from branch project:11.x
• ce6cf32a - Merge branch '11.x' into 3414807-drupalcoreassetlibrarydiscoveryparser-should-use
• 81597656 - Merge branch '11.x' into 3414807-drupalcoreassetlibrarydiscoveryparser-should-use

Compare with previous version