Non standard assertions

[TheNNX]

The provided AssertXXX macros seem to be written in a non-standard way - for some reason, they trigger when asserted expressions are true, instead of triggering on false. This is quite confusing, and caused me some debugging, that could be avoided if:

• The macros were renamed to differentiate their behaviour from normal assertions
• The macros were changed to behave in a more standard way