using not operator on boolean array

[Willi Braun]

Example model:

model A
  Boolean[:] b={b1,b2};
  Boolean b1,b2;
  Boolean[size(b,1)] nb;
  Real x(start=1); 
equation
  der(x) = x;
  when x > 1.5 then
    b1 = true;
  end when;
  when x > 2 then
    b2 = true;
  end when;
  nb = b;
  //nb = not b; <- generates the following error
end A;

# Error encountered! Exiting...
# Please check the error message and the flags.
- instEquationCommonWork failed for eqn: nb = not b; in scope:A
- instEquation failed eqn:nb = not b;
- Inst.instClassdef failed
  class :A
- Inst.instClassIn failed on class:A in environment: A
- Inst.instClass: A failed

[Per Östlund]

Fixed in r9029, see test case mofiles/ArrayLogic.