message: [dotest] Set environment variables after potentialy clearing others.
  Dotest contains code to clear DYLD_LIBRARY_PATH for the inferior to not
  propagate sanitized builds. However, it's possible that we want to
  inject a different library path with `--inferior-env`. To make that work
  correctly, we need to do that *after* clearing DYLD_LIBRARY_PATH.
diff: @@ -1851,9 +1851,6 @@ class TestBase(Base):
  # decorators.
  Base.setUp(self)
  - if lldbtest_config.inferior_env:
  - self.runCmd('settings set target.env-vars {}'.format(lldbtest_config.inferior_env))
  -
  # Set the clang modules cache path used by LLDB.
  mod_cache = os.path.join(os.environ["LLDB_BUILD"], "module-cache-lldb")
  self.runCmd('settings set symbols.clang-modules-cache-path "%s"'
  @@ -1871,6 +1868,10 @@ class TestBase(Base):
  if 'DYLD_LIBRARY_PATH' in os.environ:
  self.runCmd('settings set target.env-vars DYLD_LIBRARY_PATH=')
  + # Set environment variables for the inferior.
  + if lldbtest_config.inferior_env:
  + self.runCmd('settings set target.env-vars {}'.format(lldbtest_config.inferior_env))
  +
  if "LLDB_MAX_LAUNCH_COUNT" in os.environ:
  self.maxLaunchCount = int(os.environ["LLDB_MAX_LAUNCH_COUNT"])
  