Rename bugpoint's error message file so that if it somehow
gets left behind, it's less cryptic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64399 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/bugpoint/ToolRunner.cpp b/tools/bugpoint/ToolRunner.cpp
index d4cea9f..f6a151c 100644
--- a/tools/bugpoint/ToolRunner.cpp
+++ b/tools/bugpoint/ToolRunner.cpp
@@ -80,7 +80,7 @@
   OS << "\n";
 
   // Rerun the compiler, capturing any error messages to print them.
-  sys::Path ErrorFilename("error_messages");
+  sys::Path ErrorFilename("bugpoint.program_error_messages");
   std::string ErrMsg;
   if (ErrorFilename.makeUnique(true, &ErrMsg)) {
     std::cerr << "Error making unique filename: " << ErrMsg << "\n";