Rename error.Fail to error.LuaError

[natecraddock]

Also prefix the other errors with Lua

Not sure yet, but it seems that would be a good way to namespace things?

[nurpax]

Just throwing this out here, I'm not sure I know what is the right answer to this.

But would it make sense to return std.mem.Allocator.Error.OutOfMemory directly from std.mem.Allocator failures instead of translating to error.Memory? I don't have a motivating example case for this, but it feels like it might harmonize error handling code if Ziglua doesn't define another error for OOM.

[natecraddock]

I agree, reusing the OutOfMemory error would make sense

[VisenDev]

error.LuaError is a more descriptive than error.Fail

Just getting "error: fail" can be a little annoying