Fixed failure on Darwin due to r354064

Summary:
instrprof-darwin-exports.c test fails on Darwin due  to r354064.

Updated clang list of exported symbols to fix the issue.

Reviewers: vsk

Reviewed By: vsk

Subscribers: davidxl, efriedma

Differential Revision: https://reviews.llvm.org/D58259

llvm-svn: 354089

clang/lib/Driver/ToolChains/Darwin.cpp

@@ -1048,7 +1048,6 @@ void Darwin::addProfileRTLibs(const ArgList &Args,
       addExportedSymbol(CmdArgs, "___llvm_profile_filename");
       addExportedSymbol(CmdArgs, "___llvm_profile_raw_version");
       addExportedSymbol(CmdArgs, "_lprofCurFilename");
-      addExportedSymbol(CmdArgs, "_lprofMergeValueProfData");
     }
     addExportedSymbol(CmdArgs, "_lprofDirMode");
   }