RFC: Change rules for adding/changing test cases

[Robert Dewar]

<<  All test cases must have comments indicating what type of failure
  they are testing (i.e. the conditions that indicated the need for a
  test case, location of the abort, whatever), and when fixed,
  comments indicating what/how it was fixed.
>>

We find it very useful to have substantial chunks of real application code
in different styles in our test suite. Not to test anything very specific, 
but just to test general robustness.