Lazily load the "next" namespace in the chain of NamespaceDecls, to
eliminate some excessive recursion and deserialization.

llvm-svn: 117476
3 files changed
tree: 87a0b10aa9bb9ce52a1570017d6edaf308e2e76c
  1. clang/
  2. compiler-rt/
  3. debuginfo-tests/
  4. libcxx/
  5. lldb/
  6. llvm/