inlining fastgetattr()

I am working on a patch to inline fastgetattr(), fastgetiattr(), and
getsysattr() calls.  This will allow full inline access to the raw tuple
data without any function call overhead, which some one showed can read
1 million calls in very trivial queries.

My previous inlining attempts inlined most of this, but these functions
where the last part.  I will have a patch tomorrow.  I have also gotten
a much cleaner format for the macros.

-- 
Bruce Momjian
maillist@candle.pha.pa.us