ARM improvements to constant div, mod and mul.
* Fast runtime calls for div and mod. * Fix assembly and disassembly of multiply instructions. * Strength reduce and inline multiplications to shift-add. * Strength reduce and inline mod by power of 2. * Strength reduce mod by other small integers to mul. * Strength reduce div by 2 and 3. Review URL: http://codereview.chromium.org/155047 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2355 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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test/mjsunit/div-mod.js
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