Only output failures during test runs (#225)

Author: brianquinlan

.github/workflows/io_file.yml

@@ -65,8 +65,7 @@ jobs:
       - uses: dart-lang/setup-dart@e51d8e571e22473a2ddebf0ef8a2123f0ab2c02c
         with:
           sdk: ${{ matrix.sdk }}
-
-      - run: dart --enable-experiment=native-assets test --test-randomize-ordering-seed=random --platform vm
+      - run: dart --enable-experiment=native-assets test --reporter=failures-only --test-randomize-ordering-seed=random --platform vm
 
   profile-vm-test:
     # Ensure that the tests pass when run under the profiler (which sends
@@ -77,7 +76,7 @@ jobs:
       - uses: dart-lang/setup-dart@e51d8e571e22473a2ddebf0ef8a2123f0ab2c02c
         with:
           sdk: dev
-      - run: dart --enable-experiment=native-assets --profiler --profile_period=50 test --test-randomize-ordering-seed=random --platform vm
+      - run: dart --enable-experiment=native-assets --profiler --profile_period=50 test --reporter=failures-only --test-randomize-ordering-seed=random --platform vm
 
   desktop-vm-benchmark:
     strategy:
@@ -117,7 +116,7 @@ jobs:
 
       - run: |
           flutter pub get
-          flutter test integration_test --test-randomize-ordering-seed=random
+          flutter test integration_test --reporter=failures-only --test-randomize-ordering-seed=random
 
   web-test:
     runs-on: ubuntu-latest
@@ -126,5 +125,4 @@ jobs:
       - uses: dart-lang/setup-dart@e51d8e571e22473a2ddebf0ef8a2123f0ab2c02c
         with:
           sdk: dev
-
-      - run: dart --enable-experiment=native-assets test --test-randomize-ordering-seed=random --platform chrome
+      - run: dart --enable-experiment=native-assets test --reporter=failures-only --test-randomize-ordering-seed=random --platform chrome