julia

f362f473 - precompile: fix a myriad of concurrency and cache handling mistakes (#59670)

precompile: fix a myriad of concurrency and cache handling mistakes (#59670) * The PR for LOADING_CACHE failed to acquire the lock in many places it was newly made mandatory. * The stale_cache_key did not include many relevant parameters. * The `isprecompiled` implementation failed to account for the preferred stdlib logic of loading. * The `isprecompiled` cache failed to account for either newly compiled packages or other changes to the file system. * After parallel precompile noticed a package fails, it would retry with serial precompile, which was very pointless. * Semaphore could be <= 0, leading to deadlock. * After parallel precompile noticed a failure, it would crash, instead of allowing the program to continue on to load the package normally. We had tests for this, but they had gotten removed.