For PR387:
Close out this long standing bug by removing the remaining overloaded
virtual functions in LLVM. The -Woverloaded-virtual option is now turned on.

llvm-svn: 29934
diff --git a/llvm/lib/Analysis/IPA/Andersens.cpp b/llvm/lib/Analysis/IPA/Andersens.cpp
index c9f5871..bb3f254 100644
--- a/llvm/lib/Analysis/IPA/Andersens.cpp
+++ b/llvm/lib/Analysis/IPA/Andersens.cpp
@@ -236,7 +236,8 @@
     //
     AliasResult alias(const Value *V1, unsigned V1Size,
                       const Value *V2, unsigned V2Size);
-    ModRefResult getModRefInfo(CallSite CS, Value *P, unsigned Size);
+    virtual ModRefResult getModRefInfo(CallSite CS, Value *P, unsigned Size);
+    virtual ModRefResult getModRefInfo(CallSite CS1, CallSite CS2);
     void getMustAliases(Value *P, std::vector<Value*> &RetVals);
     bool pointsToConstantMemory(const Value *P);
 
@@ -387,6 +388,11 @@
   return AliasAnalysis::getModRefInfo(CS, P, Size);
 }
 
+AliasAnalysis::ModRefResult
+Andersens::getModRefInfo(CallSite CS1, CallSite CS2) {
+  return AliasAnalysis::getModRefInfo(CS1,CS2);
+}
+
 /// getMustAlias - We can provide must alias information if we know that a
 /// pointer can only point to a specific function or the null pointer.
 /// Unfortunately we cannot determine must-alias information for global