Rename the 'Attributes' class to 'Attribute'. It's going to represent a single attribute in the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170502 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/CodeMetrics.cpp b/lib/Analysis/CodeMetrics.cpp
index 485e39a..84b3266 100644
--- a/lib/Analysis/CodeMetrics.cpp
+++ b/lib/Analysis/CodeMetrics.cpp
@@ -196,7 +196,7 @@
   // as volatile if they are live across a setjmp call, and they probably
   // won't do this in callers.
   exposesReturnsTwice = F->callsFunctionThatReturnsTwice() &&
-    !F->getFnAttributes().hasAttribute(Attributes::ReturnsTwice);
+    !F->getFnAttributes().hasAttribute(Attribute::ReturnsTwice);
 
   // Look at the size of the callee.
   for (Function::const_iterator BB = F->begin(), E = F->end(); BB != E; ++BB)