Don't print clock updates between prints.

CHANGELOG.md

-## 0.12.3+9
+## 0.12.4
 
-* Widen the constraint on `analyzer` to include `0.26.0`.
-
-## 0.12.3+8
-
 * Add a `--pause-after-load` flag that pauses the test runner after each suite
   is loaded so that breakpoints and other debugging annotations can be added.
   Currently this is only supported on browsers.
 
 * Add a `Timeout.none` value indicating that a test should never time out.
 
 * The `dart-vm` platform selector variable is now `true` for Dartium and content
   shell.
 
+* The compact reporter no longer prints status lines that only update the clock
+  if they would get in the way of messages or errors from a test.
+
+## 0.12.3+9
+
+* Widen the constraint on `analyzer` to include `0.26.0`.
+
 ## 0.12.3+8
 
 * Fix an uncaught error that could crop up when killing the test runner process
   at the wrong time.
 
 ## 0.12.3+7
 
 * Add a missing dependency on the `collection` package.
 
 ## 0.12.3+6
@@ skipping 230 matching lines @@
 * **NEW!** `expectAsyncUntil` replaces the now deprecated `expectAsyncUntil0`,
     `expectAsyncUntil1` and `expectAsyncUntil2`
 * `TestCase`:
     * Removed properties: `setUp`, `tearDown`, `testFunction`
     * `enabled` is now get-only
     * Removed methods: `pass`, `fail`, `error`
 * `interactive_html_config.dart` has been removed.
 * `runTests`, `tearDown`, `setUp`, `test`, `group`, `solo_test`, and
   `solo_group` now throw a `StateError` if called while tests are running.
 * `rerunTests` has been removed.