Problem

After VSCode updated to 1.46.0 the command Dart: Run All Tests only runs a portion of my tests and not all of them.
As you can see on the screenshot only three test suites are run, although there are nine test files inside my project.

It looks like it does not find every test file inside the project, but the tests inside the found test files are all being executed.

Reproduction

1. Create a new project
2. Copy the existing test inside widget_test multiple times
3. Create a few duplicates of widget_test.dart (e.g. widget_2_test.dart)
4. Run Dart: Run All Tests

Logs

Dart-Code-Log-2020-05-03 10-45-37.txt