Michael Ilseman dd56e9aa72 Silence more static analyzer warnings.
Add in definedness checks for shift operators, null checks when
pointers are assumed by the code to be non-null, and explicit
unreachables.

llvm-svn: 224255
2014-12-15 18:48:43 +00:00
..
2014-12-09 18:38:53 +00:00