utf8: Use less naive method for circled and blackletter
utf8: Use less naive method for circled and blackletter

Former-commit-id: ef01661b9e5d7e694d3533bb4fdcd1639ba90c86 [formerly 832243eecbece8bcae9ff8e4af7c8aca3c8d17b1]
Former-commit-id: 918f5681e3b2f24d73a9e996e16511960de59433
torhve/ivar2,haste/ivar2,torhve/ivar2,torhve/ivar2