Use method to query for attributes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165209 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/GlobalOpt.cpp b/lib/Transforms/IPO/GlobalOpt.cpp
index b1ba6be..7e3b45b 100644
--- a/lib/Transforms/IPO/GlobalOpt.cpp
+++ b/lib/Transforms/IPO/GlobalOpt.cpp
@@ -2063,7 +2063,7 @@
 
 static AttrListPtr StripNest(const AttrListPtr &Attrs) {
   for (unsigned i = 0, e = Attrs.getNumSlots(); i != e; ++i) {
-    if ((Attrs.getSlot(i).Attrs & Attribute::Nest) == 0)
+    if (!Attrs.getSlot(i).Attrs.hasNestAttr())
       continue;
 
     // There can be only one.