Move all of the DSA headers into the Analysis/DataStructure subdir.

llvm-svn: 14663
diff --git a/llvm/lib/Analysis/DataStructure/DataStructure.cpp b/llvm/lib/Analysis/DataStructure/DataStructure.cpp
index 7b0ddba..751d66c 100644
--- a/llvm/lib/Analysis/DataStructure/DataStructure.cpp
+++ b/llvm/lib/Analysis/DataStructure/DataStructure.cpp
@@ -11,7 +11,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm/Analysis/DSGraphTraits.h"
+#include "llvm/Analysis/DataStructure/DSGraphTraits.h"
 #include "llvm/Function.h"
 #include "llvm/GlobalVariable.h"
 #include "llvm/iOther.h"