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Joseph Snyder
e0ac166e7b
Introduce the capability to use the Clang Source code coverage capability
to generate coverage information for a submission to CDash.
This handler will:
* Recursively glob the binary directory for coverage files (`*.profdata`)
* Use the `llvm-profdata` tool to merge all found files into a single
`default.profdata` file
* Recursively glob the binary directory for .o files
* Use the `llvm-cov export` capability to parse the coverage information
found for each object file
Since the coverage information contains branch coverage, add new attributes
to the CoverageLog Line object to capture the number of branches that are
covered and uncovered
See documentation page here
https://clang.llvm.org/docs/SourceBasedCodeCoverage.html