Added LLVM project notice to the top of every C++ source file.
Header files will be on the way.

llvm-svn: 9298
diff --git a/llvm/lib/Analysis/DataStructure/GraphChecker.cpp b/llvm/lib/Analysis/DataStructure/GraphChecker.cpp
index a01c483..b0164da 100644
--- a/llvm/lib/Analysis/DataStructure/GraphChecker.cpp
+++ b/llvm/lib/Analysis/DataStructure/GraphChecker.cpp
@@ -1,4 +1,11 @@
 //===- GraphChecker.cpp - Assert that various graph properties hold -------===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
 //
 // This pass is used to test DSA with regression tests.  It can be used to check
 // that certain graph properties hold, such as two nodes being disjoint, whether