[M] Change in flashrom[master]: tests: Add llvm-cov option and run target for code coverage

[Evan Benn (Code Review)]

Attention is currently required from: Thomas Heijligen, Evan Benn.

Hello build bot (Jenkins), Thomas Heijligen, Edward O'Callaghan, Anastasia Klimchuk,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/flashrom/+/69268

to look at the new patch set (#18).

Change subject: tests: Add llvm-cov option and run target for code coverage
......................................................................

tests: Add llvm-cov option and run target for code coverage

Code coverage can be requested with -Dllvm_cov and run with ninja
llvm-cov-tests or llvm-cov-cli.

BUG=b:187647884
BRANCH=None
TEST=meson test; ninja llvm-cov-tests
TEST=ran test_build.sh with coverage enabled
TEST=jenkins ran test_build.sh with coverage disabled

Change-Id: Id6c73bff46e7b88d425956a80def97082b201f56
Signed-off-by: Evan Benn 
---
M Documentation/building.md
M meson.build
M meson_options.txt
A scripts/llvm-cov
M tests/meson.build
5 files changed, 46 insertions(+), 9 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/68/69268/18