Copy the decls returned by DeclContext::lookup_result to a
new container so we can safely iterate over them.

The container holding the lookup decls can under certain conditions
be changed while iterating (e.g. because of deserialization).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167816 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed