[xhtml-mathml-dtd-entity-3.htm]
  expected:
    if (os == "linux") and not debug and fission and (processor == "x86_64"): [OK, TIMEOUT]
    if (os == "linux") and not debug and fission and (processor == "x86"): [OK, TIMEOUT]
    if (os == "linux") and not debug and not fission: [OK, TIMEOUT]
    if (os == "linux") and debug: [OK, TIMEOUT]
