s/AttrListPtr/AttributeSet/g to better label what this class is going to be in the near future.

llvm-svn: 169651
diff --git a/llvm/lib/VMCore/Function.cpp b/llvm/lib/VMCore/Function.cpp
index 860787e..9b2046b 100644
--- a/llvm/lib/VMCore/Function.cpp
+++ b/llvm/lib/VMCore/Function.cpp
@@ -249,13 +249,13 @@
 }
 
 void Function::addAttribute(unsigned i, Attributes attr) {
-  AttrListPtr PAL = getAttributes();
+  AttributeSet PAL = getAttributes();
   PAL = PAL.addAttr(getContext(), i, attr);
   setAttributes(PAL);
 }
 
 void Function::removeAttribute(unsigned i, Attributes attr) {
-  AttrListPtr PAL = getAttributes();
+  AttributeSet PAL = getAttributes();
   PAL = PAL.removeAttr(getContext(), i, attr);
   setAttributes(PAL);
 }