Set MESON_CI_JOBNAME for all CI jobs

Set MESON_CI_JOBNAME for all CI jobs which run project tests.

(Note that ${{ github.job }} is the literal job.id used in the yaml, not
any name given to the job with job.id.name, and so is the same for all
matrix entries, and thus not suitable for our purposes there).

.github/workflows/cygwin.yml

@@ -24,6 +24,8 @@ jobs:
         include:
           - NAME: gccx64ninja
             ARCH: x86_64
+    env:
+      MESON_CI_JOBNAME: cygwin-${{ matrix.NAME }}
 
     steps:
       # cache should be saved on failure, but the action doesn't support that

.github/workflows/macos.yml

@@ -43,8 +43,18 @@ jobs:
   project-tests-appleclang:
     runs-on: macos-latest
     strategy:
+      fail-fast: false
       matrix:
-        unity: ["on", "off"]
+        include:
+        - NAME: macos-clang
+          unity: off
+        - NAME: macos-clang-unity
+          unity: on
+
+    name: ${{ matrix.NAME }}
+    env:
+      MESON_CI_JOBNAME: ${{ matrix.NAME }}
+
     steps:
     - uses: actions/checkout@v2
     # use python3 from homebrew because it is a valid framework, unlike the actions one:

.github/workflows/msys2.yml

@@ -40,6 +40,8 @@ jobs:
             MSYS2_CURSES:
             COMPILER: clang
             TOOLCHAIN: clang
+    env:
+      MESON_CI_JOBNAME: msys2-${{ matrix.NAME }}
 
     defaults:
       run:

.github/workflows/nonative.yml

@@ -22,6 +22,9 @@ jobs:
   cross-only-armhf:
     runs-on: ubuntu-latest
     container: mesonbuild/eoan:latest
+    env:
+      MESON_CI_JOBNAME: ubuntu-${{ github.job }}
+
     steps:
     - run: |
         apt-get -y purge clang gcc gdc

.github/workflows/unusedargs_missingreturn.yml

@@ -47,6 +47,8 @@ jobs:
         sudo apt install -yq --no-install-recommends g++ gfortran ninja-build gobjc gobjc++
         python -m pip install coverage codecov
     - run: ./tools/run_with_cov.py run_project_tests.py --only cmake common fortran platform-linux "objective c" "objective c++"
+      env:
+        MESON_CI_JOBNAME: linux-ubuntu-gcc-werror
     - name: Upload coverage report
       run: ./ci/upload_cov.sh "UnusedMissingReturn"
 
@@ -65,6 +67,7 @@ jobs:
         CC: gcc
         CXX: g++
         FC: gfortran
+        MESON_CI_JOBNAME: msys2-gcc-werror
 
     - name: Upload coverage report
       run: ./ci/upload_cov.sh "UnusedMissingReturn Windows"

ci/azure-steps.yml

@@ -3,6 +3,8 @@ steps:
   inputs:
     targetType: 'filePath'
     filePath: .\ci\run.ps1
+  env:
+    MESON_CI_JOBNAME: azure-$(System.JobName)
 
 - task: PublishTestResults@2
   inputs: