Fix pseudo-smi accessors lo/hi ordering for SharedFunctionInfo on x64.
Fix pseudo-smi accessors lo/hi ordering for SharedFunctionInfo on x64.

Incorrect ordering lead to crashes during GC when end position was not even number.

Add static assert to catch this kind of typos.

Review URL: http://codereview.chromium.org/4640003

git-svn-id: b158db1e4b4ab85d4c9e510fdef4b1e8c614b15b@5776 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

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