WAKOKO: coverage tool for WASM

[monperrus]

issue to keep some traces of the progress and todos.

• Add support for instruction coverage in SWAM

Next steps:

• Implement the coverage in linear memory instead of one variable per block

[monperrus]

TODO @Jacarte @tareq97 rebase branch optin against SWAM master

[Jacarte]

Path coverage in KTH/swam#9

[orestisfl]

See https://github.com/WebAssembly/binaryen/blob/master/src/passes/InstrumentLocals.cpp and https://github.com/WebAssembly/binaryen/blob/master/src/passes/InstrumentMemory.cpp

[monperrus]

FYI v2 is a pure C implementation: #74

[monperrus]

Alternatives could be https://github.com/rustwasm/walrus/ and the other one in binaryen, see Orestis' comment above.