I am using a modified version of <https://github.com/yglukhov/coverage>. I am
generating lcov.info file and then using vscode extension `coverage gutters` to
overlay coverage info into my code. Superb result.
Yes, you have to add cov annotation but I find it useful, as project grow I
have started to remove {.cov.} annotations to keep performance of the debug
build reasonable. Since it hot spot, you know it is covered.
I had an idea to implement version of <https://github.com/yglukhov/coverage>
that will use term rewriting macro feature
<https://nim-lang.github.io/Nim/manual_experimental.html#term-rewriting-macros>.
You will only to import coverage module to get coverage remort. Though some
improvements to term writing macro needs to happen to make it feasible.
