message: Make sure that a sanitizer LLDB's environment doesn't get passed on
  to test binaries.
diff: @@ -1874,6 +1874,11 @@ class TestBase(Base):
  # differ in the debug info, which is not being hashed.
  self.runCmd('settings set symbols.enable-external-lookup false')
  + # Make sure that a sanitizer LLDB's environment doesn't get passed on.
  + if (('DYLD_INSERT_LIBRARIES' in os.environ) and
  + 'libclang_rt.asan' in os.environ['DYLD_INSERT_LIBRARIES']):
  + self.runCmd('settings set target.env-vars DYLD_INSERT_LIBRARIES=')
  +
  if "LLDB_MAX_LAUNCH_COUNT" in os.environ:
  self.maxLaunchCount = int(os.environ["LLDB_MAX_LAUNCH_COUNT"])
  