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/Bitcode/Writer/ValueEnumerator.h b/lib/Bitcode/Writer/ValueEnumerator.h
index 5aeea20..dbaf1e3 100644
--- a/lib/Bitcode/Writer/ValueEnumerator.h
+++ b/lib/Bitcode/Writer/ValueEnumerator.h
@@ -54,7 +54,7 @@
 
   typedef DenseMap<void*, unsigned> AttributeMapType;
   AttributeMapType AttributeMap;
-  std::vector<AttributeSet> Attributes;
+  std::vector<AttributeSet> Attribute;
 
   /// GlobalBasicBlockIDs - This map memoizes the basic block ID's referenced by
   /// the "getGlobalBasicBlockID" method.
@@ -122,7 +122,7 @@
     return BasicBlocks;
   }
   const std::vector<AttributeSet> &getAttributes() const {
-    return Attributes;
+    return Attribute;
   }
 
   /// getGlobalBasicBlockID - This returns the function-specific ID for the