Use find instead of lower_bound.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53474 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/Timer.cpp b/lib/Support/Timer.cpp
index c8678d3..29fd00c 100644
--- a/lib/Support/Timer.cpp
+++ b/lib/Support/Timer.cpp
@@ -185,8 +185,8 @@
 static ManagedStatic<std::map<std::string, Timer> > NamedTimers;
 
 static Timer &getNamedRegionTimer(const std::string &Name) {
-  std::map<std::string, Timer>::iterator I = NamedTimers->lower_bound(Name);
-  if (I != NamedTimers->end() && I->first == Name)
+  std::map<std::string, Timer>::iterator I = NamedTimers->find(Name);
+  if (I != NamedTimers->end())
     return I->second;
 
   return NamedTimers->insert(I, std::make_pair(Name, Timer(Name)))->second;