package:test v1.32.0

• Precompiled browser tests: stop serving files from outside the precompiled
  root directory. The static handler no longer sets serveFilesOutsidePath,
  restoring path-containment parity with the dart2js and dart2wasm compilers.
• Export TestFailure from package:test/scaffolding.dart.
• Support --compiler cli with the vm-asan, vm-msan, and vm-tsan
  runtimes.
• Add support for DART_TEST_REPORTER environment variable in test runner and
  when tests are run directly on platforms which support dart:io. The
  environment variable takes precedence over configuration in dart_test.yaml
  but is overridden by the --reporter flag when passed to the test runner.
• Suppress dart2js compiler output for successful compiles.
• Include output from passing tests messages within the Passing tests group
  in GithubReporter.
• Only include VM debugger in output when using interactive debugging, suppress
  it when only using coverage.
• Use a redirect html file for browser tests to avoid leaking websocket details
  through process starting arguments.
• Migrate out of process VM tests communication channel from TCP sockets to Unix
  domain sockets inside a restricted temporary directory.
• Pass Node.js test process connection configuration and secret token via a
  restricted temporary authentication file to prevent secret leakage in command
  line process arguments.
• Enable asserts in the exe compiler.
• Keep the CHROME_EXECUTABLE, MS_EDGE_EXECUTABLE, FIREFOX_EXECUTABLE, and
  SAFARI_EXECUTABLE overrides working when the browser is also configured
  through override_platforms or define_platforms. Any setting on those
  platforms used to drop the variable.
• Fix race conditions in Chrome coverage collection where tests could finish
  before DevTools connection and coverage profiling were initialized.
• Fix deadlock that may occur running tests with the exe compiler.