omc infinite loop

[StefanJank]

While compiling following code, omc runs into infinite loop, eating
memory and cpu. Should give kind of error message?

code:

class A

class B

A a;

end B;
B b;

end A;

tested on openmodelica 1.4.5 windows xp and vista.

[Per Östlund]

Fixed in r9735, see testcase mofiles/RecursiveDefinition.mo.