another test such that linked together they verify that
1. It links properly
2. The constant is loaded properly
3. The function is called properly
shown (probably not proved) by the program exiting with error level 0.
svn path=/trunk/yasm/; revision=1024
To ensure all section start addresses are known, added a first pre-pass of
sections to calculate each one's address.
svn path=/trunk/yasm/; revision=775