Rework the realpath nonsense for framework lookups to deal more
uniformly with symlinks between top-level and embedded frameworks.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172030 91177308-0d34-0410-b5e6-96231b3b80d8
Don't assert in codegen on static data members which have NoLinkage. Fixes
PR14825!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172031 91177308-0d34-0410-b5e6-96231b3b80d8