Commit 1401b0fb5ed193dd67b5f156957b04cdde69b005

Ran Benita 2012-10-04T12:27:06

expr: don't allow "none" in LookupModIndex LookupModMask handles this before calling LookupModIndex, and the only other user in symbols.c doesn't handle this return value at all. Signed-off-by: Ran Benita <ran234@gmail.com>