Ruby

merge revision(s) 2c93c554019ebdc394d3c51c6d925620d3005f84,f5ea43a2e61789357e9c4b374b4bc6756abeae17: [Backport #19360]

    Ensure main file has default coverage if required. (#7169)

    * Extract common code for coverage setup.
    ---
     iseq.c | 13 +++++++++++--
     1 file changed, 11 insertions(+), 2 deletions(-)

    More coverage tests & specs. (#7171)

    * Add spec for eval and line coverage.

    * Add test for main file coverage.
    ---
     spec/ruby/library/coverage/start_spec.rb | 8 +++++++-
     test/coverage/autostart.rb               | 2 ++
     test/coverage/main.rb                    | 1 +
     test/coverage/test_coverage.rb           | 7 +++++++
     4 files changed, 17 insertions(+), 1 deletion(-)
     create mode 100644 test/coverage/autostart.rb
     create mode 100644 test/coverage/main.rb