📰 trunk/a29983011fb458db9592d61a78c6c060b3d1da82: [BE][Ez]: Micro-opt char literal ostream overloads (#186387)

A lot of streams append single characters without going through the char level overload. This requires them to calculate and reserve length on it and go through less efficient string and << overloads.
Pull Request resolved: #186387
Approved by: https://github.com/malfet, https://github.com/cyyever