[fetter-devel] FTGL test and other things

[Rayiner Hashem]

I've recently added an FTGL test to the testsuite. Currently, its a null 
test, since all it does is check to see if the binding compiles, but it runs 
just fine, and I'll flesh it out a bit more when I get the time. FTGL 
exposed a bug in the dependency sorting algorithm, where the behavior of 
mutually-referencing structures was poorly defined. Usually, it worked, in 
FTGL, it didn't. I've modified the algorithm to assume that alias-types 
don't create dependencies (as typedef doesn't create dependencies), with the 
effect being that alias types tend to get bubbled up to the beginning of the 
definition queue where they belong. I've also modified the C++ to CFFI type 
mapper to map bool to char. This is somewhat less than ideal (but works due 
to the sizes of the data types involved), and I'll fix that as soon as I get 
Verrazano generating C-FFI's type mappers. Lastly, I've updated the C-FFI 
backend to use foreign-alloc instead of foreign-object-alloc (which no 
longer exists). 

Sincerely,
Rayiner Hashem
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