Dr. Syscall code cleanup: normalize enum types as signed
Dr. Syscall code cleanup: normalize enum types as signed

SVN-Revision: 1923

code4bones/drmemory,LohithBlaze/drmemory,sigma-random/drmemory,LohithBlaze/drmemory,code4bones/drmemory,sigma-random/drmemory,code4bones/drmemory,LohithBlaze/drmemory,LohithBlaze/drmemory,sigma-random/drmemory,code4bones/drmemory,LohithBlaze/drmemory,code4bones/drmemory,sigma-random/drmemory,sigma-random/drmemory