Backtrace: Display binary offset #155
Description
We should provide a way to map a Pc to its binary offset in the source module level for a better understanding of where the program crashed. Additionaly we need this mapping for future debugging support as DWARF information don't know Pc.
For now, all single "trappable" VM instruction corresponds to a single Wasm-level instruction (no unified instructions nor pseudo trappable VM instruction), so a Pc (at trappable instruction) -> BinaryOffset is injective.
We need to figure out how to build an address map function efficiently.