Fix all the places where gcc complains about casts from pointers
(presumably 64 bit) to integers of different size (in this case,
32-bit int). This makes it compile cleanly on 64-bit AIX and also
means it doesn't crash :-)
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6297
x86 isms in tinycc.c, (2) giving it a fixed, preprocessed input file
to chew on, and (3) just compiling to a .o with no attempt to link.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@5439
