In cmmgen, use previously defined 'get_size' function to emit
the code that extract size of blocks.



git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14500 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
fix msvc64 port by removing unused open Misc (untested, esp. on other Windows ports)

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14501 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
ignore .cmt and .cmti files

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14502 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02