Coverage for Function Signatures #48
Description
It's a known issue that function signatures might not be marked as covered, even if their body is covered. This is mainly attributed to the function inlining (as mentioned in the README file). This issue breaks the usefulness of the coverage numbers and always requires manual checking of all files.
One way to improve this (before there's a better solution via Julia itself) is to do a post-processing on the coverage files and mark the signature of all multi-line functions as covered if at least one line in their body is covered. This change will make the coverage information much more accurate and useful.