Don't use enums larger than 1 << 31 for target features.
Don't use enums larger than 1 << 31 for target features.

Patch by Andy Zhang!

git-svn-id: a4a6f32337ebd29ad4763b423022f00f68d1c7b7@147491 91177308-0d34-0410-b5e6-96231b3b80d8

lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx,lodyagin/bare_cxx