Use std::find instead of a manual loop.

llvm-svn: 250880
diff --git a/clang/lib/Basic/TargetInfo.cpp b/clang/lib/Basic/TargetInfo.cpp
index 048a6d6..2ec22cf 100644
--- a/clang/lib/Basic/TargetInfo.cpp
+++ b/clang/lib/Basic/TargetInfo.cpp
@@ -364,10 +364,8 @@
   }
 
   // Check register names.
-  for (unsigned i = 0; i < Names.size(); i++) {
-    if (Name == Names[i])
-      return true;
-  }
+  if (std::find(Names.begin(), Names.end(), Name) != Names.end())
+    return true;
 
   // Check any additional names that we have.
   ArrayRef<AddlRegName> AddlNames = getGCCAddlRegNames();