Fix a bunch of namespace polution.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101376 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index d320b65..7a4a4f9 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -1881,6 +1881,7 @@
   }
 }
 
+namespace {
 
 struct MatchScope {
   /// FailIndex - If this match fails, this is the index to continue with.
@@ -1902,6 +1903,8 @@
   bool HasChainNodesMatched, HasFlagResultNodesMatched;
 };
 
+}
+
 SDNode *SelectionDAGISel::
 SelectCodeCommon(SDNode *NodeToMatch, const unsigned char *MatcherTable,
                  unsigned TableSize) {