syntax.test is passing, yay

syntax.test is passing, yay

* test-suite/tests/syntax.test ("top-level define"): Remove the test for
  currying, as we don't do that any more by default. It should be easy
  for the user to add in if she wants it, though.
  ("do"): Remove unmemoization tests, as sc-expand fully expands `do'.
  ("while"): Remove while tests in empty environments. They have been
  throwing 'unresolved, and the problem they seek to test is fully
  handled by hygiene anyway.

  And otherwise tweak expected exception strings, and everything passes!