+ /// hasNoAliasAttr - Return true if this argument has the noalias attribute on
+ /// it in its containing function.
+ bool hasNoAliasAttr() const;
+
+ /// hasSRetAttr - Return true if this argument has the sret attribute on it in
+ /// its containing function.
+ bool hasStructRetAttr() const;
+
+ /// addAttr - Add a Attribute to an argument
+ void addAttr(Attributes);
+
+ /// removeAttr - Remove a Attribute from an argument
+ void removeAttr(Attributes);