Add test for integer constants
Add test for integer constants

There are some ugly rules in C99 about the type of integer
constants, and this test try to check them.

8l/scc,k0gaMSX/scc,k0gaMSX/kcc,k0gaMSX/kcc,8l/scc,k0gaMSX/scc,8l/scc,k0gaMSX/scc