[llvm-stress] Remove unneeded llvm:: prefix. NFC.

llvm-svn: 242020

llvm/tools/llvm-stress/llvm-stress.cpp

@@ -682,7 +682,7 @@ int main(int argc, char **argv) {
   using namespace llvm;
 
   // Init LLVM, call llvm_shutdown() on exit, parse args, etc.
-  llvm::PrettyStackTraceProgram X(argc, argv);
+  PrettyStackTraceProgram X(argc, argv);
   cl::ParseCommandLineOptions(argc, argv, "llvm codegen stress-tester\n");
   llvm_shutdown_obj Y;