* Adds `memory-safe` tag to assembly sections in `BytesLib`.
This improves codegen in the compiler and reduces the chance of
untraceable internal codegen errors when dealing with stack variables
that can't be referenced with an instruction.
Also, it removes unused functions in `BytesLib` to reduce code surface.
* Renames functions and contracts in reentrancy negative test.
* Adds `unchecked` block for overflow check.
This improves codegen in the compiler and reduces the chance of
untraceable internal codegen errors when dealing with stack variables
that can't be referenced with an instruction.
scnale
derpy-duck
Joe Howarth
Drew