Introduce the 'Index' library.
Its purpose is to provide the basic infrastructure for cross-translation-unit analysis like indexing, refactoring, etc.
Currently it is very "primitive" and with no type-names support. It can provide functionality like
"show me all references of this function from these translation units".
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74802 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index e3da531..2bfaa44 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -9,3 +9,4 @@
add_subdirectory(Rewrite)
add_subdirectory(Driver)
add_subdirectory(Frontend)
+add_subdirectory(Index)