Improved switch wasmtime::Span vs std::span#7

Merged

alexcrichton merged 1 commit intobytecodealliance:mainfrom redradist:update/switch-span-vs-std_span

Jun 30, 2021

+15-10

Commits on Jun 29, 2021

Instead of converting wasmtime::Span added ifdef with type alias for switching between wasmtime::Span and std::span
redradist
committed