tests: callProc asserts, doesn't return – don't depend on return value

[unhammer]

Several failing tests have been silently passing! I haven't had a chance to look at these yet, but it seems like it would just return instead of asserting after compiling the test data (since compiling always returned None and it just stopped there)

[unhammer]

actually I think I see, it needs to return all the way. Me fix.

[unhammer]

======================================================================
FAIL: runTest (lt_paradigm.OrTagRepeatTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/kiwibird/src/ap/lttoolbox/tests/basictest.py", line 148, in runTest
    self.runTestFlush(tmpd)
  File "/home/kiwibird/src/ap/lttoolbox/tests/lt_paradigm/__init__.py", line 21, in runTestFlush
    self.assertEqual(exp, srt)
AssertionError: 're<vblex><inf>:re\nre<vblex><pret>:ret' != 're<vblex><inf>:re'
- re<vblex><inf>:re
?                  -
+ re<vblex><inf>:re- re<vblex><pret>:ret

======================================================================
FAIL: runTest (lt_paradigm.OrTagTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/kiwibird/src/ap/lttoolbox/tests/basictest.py", line 148, in runTest
    self.runTestFlush(tmpd)
  File "/home/kiwibird/src/ap/lttoolbox/tests/lt_paradigm/__init__.py", line 21, in runTestFlush
    self.assertEqual(exp, srt)
AssertionError: 're<vblex><inf>:re\nre<vblex><pret>:ret' != 're<vblex><inf>:re'
- re<vblex><inf>:re
?                  -
+ re<vblex><inf>:re- re<vblex><pret>:ret

@mr-martian you may have to fix these, I'm not familiar with lt-paradigm