add initial support for the gcc "alignof(decl) is the alignment of the decl
not the type" semantics.  This can definitely be improved, but is better than
what we had.

llvm-svn: 62939
3 files changed
tree: 87ad67a9a1ecbd38d7151f53f58dfa74928e215f
  1. clang/
  2. llvm/