Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146960 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/bugpoint/CrashDebugger.cpp b/tools/bugpoint/CrashDebugger.cpp
index a0aaf53..cdb100b 100644
--- a/tools/bugpoint/CrashDebugger.cpp
+++ b/tools/bugpoint/CrashDebugger.cpp
@@ -169,7 +169,7 @@
   return false;
 }
 
-namespace llvm {
+namespace {
   /// ReduceCrashingFunctions reducer - This works by removing functions and
   /// seeing if the program still crashes. If it does, then keep the newer,
   /// smaller program.