Added two missing instructions to disassembler.
Added two missing instructions to disassembler.

The subb and the loop instructions are also added to the IA-32 disassembler.

Review URL: http://codereview.chromium.org/541008

git-svn-id: b158db1e4b4ab85d4c9e510fdef4b1e8c614b15b@3576 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh