i#363: bail on computing padding size on win7 LFH, or whenever the cookie approach is clearly wrong
i#363: bail on computing padding size on win7 LFH, or whenever
the cookie approach is clearly wrong

SVN-Revision: 270

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