The functions in Signal.h are now in the llvm::sys namespace - adjust

llvm-svn: 16091
diff --git a/llvm/tools/llvm-prof/llvm-prof.cpp b/llvm/tools/llvm-prof/llvm-prof.cpp
index f0e9dc7..efb44d6 100644
--- a/llvm/tools/llvm-prof/llvm-prof.cpp
+++ b/llvm/tools/llvm-prof/llvm-prof.cpp
@@ -108,7 +108,7 @@
 
 int main(int argc, char **argv) {
   cl::ParseCommandLineOptions(argc, argv, " llvm profile dump decoder\n");
-  PrintStackTraceOnErrorSignal();
+  sys::PrintStackTraceOnErrorSignal();
 
   // Read in the bytecode file...
   std::string ErrorMessage;