Merge branch 'master' into native-tests

script/tool/CHANGELOG.md

@@ -4,6 +4,12 @@
   unit tests or integration tests.
 - **Breaking change**: Split Xcode analysis out of `xctest` and into a new
   `xcode-analyze` command.
+- Fixed a bug that caused `firebase-test-lab` to hang if it tried to run more
+  than one plugin's tests in a single run.
+- **Breaking change**: If `firebase-test-lab` is run on a package that supports
+  Android, but for which no tests are run, it now fails instead of skipping.
+  This matches `drive-examples`, as this command is what is used for driving
+  Android Flutter integration tests on CI.
 - **Breaking change**: Replaced `xctest` with a new `native-test` command that
   will eventually be able to run native unit and integration tests for all
   platforms.