svoid test_mmo2_scoredMatch() {
  testFunctionValues_twoArgs_flat mmo2_scoredMatch(
    "hello", "hello", 1.0,
    "hello * 0.5", "hello", 0.5,
    "hello * 0.5", "no", 0.0,
    "hello * 0.2, world * 0.3", "hello", 0.2,
    "hello * 0.2, world * 0.3", "world", 0.3,
    "hello * 0.2, world * 0.3", "hello world", 0.3, // currently using "max" semantics for "+"
    "hello * 0.2 + world * 0.3", "hello", 0.0,
    "hello * 0.2 + world * 0.3", "world", 0.0,
    "hello * 0.2 + world * 0.3", "hello world", 0.06,
    "(hello + world) * 0.3", "hello world", 0.3,
  );
}

Began life as a copy of #1028073