[Fix] Bugzilla #18235 - System.Runtime.Caching.MemoryCache doesn't order expirable items correctly
- BubbleUp() in MemoryCacheEntryPriorityQueue was not ordering correctly on item insert
- Added a test case
Merge pull request #937 from exony-craigminihan/bugzilla#18235

[Fix] Bugzilla #18235 - System.Runtime.Caching.MemoryCache doesn't order...